Month: July 2023

Elementary Grammar Test 30

1. – Do you want another cake?– No, thank you. I’ve still got ________.A) someB) someone’sC) some onesD) ones 2. ________ clever people!A) What aB) WhatC) HowD) So 3. They gave ________ .A) the girls some booksB) to the girls some booksC) to them some booksD) some books the girls 4. I can’t say who ________ the answer.A) is knowingB) knowsC) are knowingD) know 5. ________ I don’t work on Saturday.A) AlwaysB) NeverC) SometimesD) Seldom 6. ________ the homework.A) No every students doB) No every studentsC) Not every students doD) Not every student does 7. – Whose is this?– It’s

Elementary Grammar Test 29

1. Choose the correct answer. Only one answer is correct.A) What is your age?B) How many years you have?C) How old you are?D) What age do you have? 2. John bought ________ cheese.A) enough ofB) too manyC) fewerD) more 3. Choose the correct answer. Only one answer is correct.A) What pencils made of?B) What are pencils made of?C) What pencils are they made of?D) What are made of pencils? 4. ________ like music.A) The both girlsB) Both this girlsC) Both of themD) Both they 5. What ________ on Saturday.A) Ken usually doesB) does Ken usuallyC) usually does Ken doD) does

Elementary Grammar Test 28

Ann: Look! Tom __1__ a dress for my birthday.Pat: It’s lovely __2__ it at Bromley’s?Ann: No, he __3__ one there, but they didn’t show __4__ that he __5__.Pat: That’s odd. They __6__ dresses that are all right for me. My birthday was two months ago.Ann: What __7__ for you?Pat: He __8__ tell him something that he __9__ buy. I said, “I __10__ anything at all. I __11__ a lot of clothes.” “That’s true,” he said. “__12__ out for dinner instead.” 1. A) gave to meB) has given to meC) have given meD) has given me 2. A) Was he buyingB) Did he

Elementary Grammar Test 27

1. Choose the correct answer. Only one answer is correct.A) How old he is?B) How many years has he?C) What age he has?D) What is his age? 2. Sheila put in ________ water.A) anyB) so muchC) fewD) enough of 3. Choose the correct answer. Only one answer is correct.A) What are cars made of?B) What cars are made of?C) What off are made cars?D) What are made of cars? 4. ________ sing beautifully.A) These both girls.B) Both of theyC) Both of themD) These two girls 5. When ________ his homework?A) Tom usually doesB) does Tom usuallyC) does Tom usually doD)

Elementary Grammar Test 26

Tom: Hello, Ann. How are you?Ann: Well, I __1__ the doctor’s yesterday.Tom: What __2__ you?Ann: He said that I have a weak stomach, but I __3__ take any medicine.Tom: How __4__ that you were ill?Ann: I was teaching __5__ a bicycle, and I couldn’t run as fast as I __6__.Tom: Well, what __7__ tomorrow evening?Ann: I __8__ __9__ invite me for dinner?Tom: __10__ __11__ in town this week, and I want __12__ with me. 1. A) was toB) went toC) have been toD) have gone to 2. A) did he tell toB) he has toldC) did he tellD) has he told to

Elementary Grammar Test 25

1. Do you want a drink?A) Yes, I want.B) Yes, I do want.C) No, I don’t.D) No, I don’t want. 2. ________ clever idea!A) What aB) WhatC) SoD) How 3. Mary got ________ .A) for her birthday a pen.B) at her birthday a pen.C) a pen for her birthday.D) a pen at her birthday 4. Ask him ________ .A) how old he is.B) how old is he.C) how old has heD) how old he has 5. ________ we didn’t visit John in hospital.A) AlreadyB) SometimesC) NeverD) Always 6. ________ to get rich.A) Not every young man tryB) Not every young

Elementary Grammar Test 24

1. Choose the correct answer. Only one answer is correct.A) What age has she?B) How many years she has?C) How old is she?D) How old she is? 2. Fred eats ________ bread.A) too manyB) so muchC) fewerD) fewer 3. Choose the correct answer. Only one answer is correct.A) Of what cups are made?B) Of what are cups?C) What cups are made of?D) What are cups made of? 4. ________ are very good.A) Both those boysB) The both boysC) Both of theyD) Both they 5. There isn’t ________ at the station.A) peopleB) some personsC) anyoneD) somebody 6. Cars are ________ lorries.A)

Elementary Grammar Test 23

“Peter __1__ back from the shop,” said Mr James. “He __2__ some new football boots, but he __3__ find any that were right for him.” “__4__ the same?” I asked. “He said they showed __5__ but he __6__ any of them.” “What __7__ do about his boots, then?” I asked. “Well, the shop told __8__ next week. It’s not a big problem because he __9__ to have them before the new school term. But he __10__ to arrange his things early. For example, he __11__ late for school.” “My daughter is different,” I said. “I __12__ throw her out when

Elementary Grammar Test 22

1. Choose the correct answer. Only one answer is correct.A) How is your age?B) How old are you?C) What age have you got?D) How many years you are? 2. Mary had ________ money.A) enoughB) manyC) fewerD) any 3. Choose the correct answer. Only one answer is correct.A) What shoes are they made?B) What shoes are made of?C) What are shoes made of?D) What are made of shoes? 4. ________ are very clever.A) Both themB) Both of themC) The both boysD) Both of boys 5. What ________ on Sundays?A) does John usually doB) do John usually doesC) John usually doesD) does

Elementary Grammar Test 21

1. John: Mr Jackson __1__ the children to the zooyesterday. When they got there they __2__ a bell, andwhen they were inside they saw a man in the lionhouse.Mary: Why __3__?John: He __4__ the lions their food.Mary: How much __5__?John: The children didn’t __6__. Did you know that__7__ two restaurants in the zoo? So people __8__ goout if __9__ eat something.Mary: What time __10__ the restaurants?John: Oh, the children __11__ remember times. They__12__ times aren’t important.A) was takingB) did takeC) tookD) has taken 2. John: Mr Jackson __1__ the children to the zooyesterday. When they got there they __2__ a

Elementary Grammar Test 20

1. I feel fine because I went ________ .A) to the bed early last nightB) to bed early last nightC) to the bed early tonightD) to bed early tonight 2. What is Peter like?He ________.A) is very wellB) is very niceC) like footballD) is liking tennis 3. Has Jimmy got his books now?Yes, my brother ________ yesterday.A) gave them to himB) gave to him themC) has given them to himD) has given to him them 4. Arthur is beside Penny.Yes, Penny is ________ Arthur.A) behindB) beforeC) besideD) between 5. Are the pencils in the box?Yes, Norma ________ on Saturday.A) put

Elementary Grammar Test 19

1. Choose the correct answer. Only one answer is correct.A) Go here to us!B) Go there to they!C) Come there to we!D) Come here to us! 2. How ________ telephone to England?A) doB) canC) I doD) to 3. This is ________ .A) the question thirty.B) the question thirteen.C) the question thirty.D) question thirteen. 4. Jack ________ football on Saturday afternoon.A) looksB) locksC) washesD) watches 5. ________ live in the town.A) SomebodyB) AnybodyC) Some peopleD) Any people 6. Did you go to Ireland last year?A) No, I’ve never been to Ireland.B) No, here I have never gone.C) No, I haven’t gone

Elementary Grammar Test 18

1. Boris usually ________ breakfast at eight o’clock.A) has got theB) hasC) takeD) eats the 2. How is your sister?A) She’s fine.B) She’s good.C) She’s there.D) That’s her. 3. There’s ________ those bottles there.A) much beer onB) much beers inC) a lot of beer inD) a lot of beer on 4. Paula’s singing ________ afternoon.A) at thisB) in thisC) on thisD) this 5. Are you going to the doctor’s?    No, ________.A) to the police stationB) I’m coming thereC) usually by busD) he’s going to me 6. There are the two boys.A) What boy is the clever?B) What boy is

Elementary Grammar Test 17

1. Are my pencils on your desk? No, there ________ on my desk.A) aren’t somethingB) isn’t somethingC) aren’t anythingD) isn’t anything 2. Have you got some red shoes? No, but I’ve got ________.A) some yellow pair.B) some yellows.C) some yellow.D) some yellow ones. 3. Whose is that car? It’s ________.A) theirsB) there’sC) theirD) there 4. Choose the correct answer. Only one answer is correct.A) What age has she?B) How many years has she?C) How old is she?D) How old she is? 5. There wasn’t ________ in the garden.A) some peopleB) anybodyC) any peopleD) no persons 6. 333 is ________ .A)

Elementary Grammar Test 16

1. Jack gave ________.A) to her the flowers.B) the flowers to hers.C) her the flowers.D) hers the flowers. 2. The sun ________ early in summer.A) always risesB) rises alwaysC) is always risingD) is rising always 3. What ________ at the weekend?A) Jane does doB) does Jane doC) do JaneD) Jane does 4. Who ________A) do Mary likes?B) Mary likes?C) do Mary like?D) does Mary like? 5. Bill and Carrie ________ the street.A) they are atB) they are inC) are inD) are at 6. What color’s your bicycle?A) It’s the red.B) It’s red.C) It’s a red color.D) It’s color’s red. 7.

Main topics in Chemistry fo Mechnikov University Entrance Exam

PROGRAMMES FOR ADMISSION TESTS HELD AT UNIVERSITY   Programme for Chemistry The admission test is conducted in the form of a written test and is evaluated on a 100-point scale. The present programme is based on the programme of admission exams in Chemistry recommended by the Ministry of Education of the Russian Federation for applicants to universities and consists of three sections. The first section is devoted to the theoretical foundations of Chemistry. It includes the basic concepts and laws of Chemistry, which are the fundamental foundations necessary for understanding the laws of chemical processes. The second section is devoted

Main topics in Biology for Mechnikov University Entrance Exam

PROGRAMMES FOR ADMISSION TESTS HELD AT UNIVERSITY Programme for Biology The programme is compiled on the basis of the mandatory minimum content of secondary (complete) general education and combines all the main substantive components of biological knowledge. The content of the programme includes the materials from all the sections of school biology: «Plants. Bacteria. Fungi. Lichens», «Animals», «Human being and Health» and «General biology». Examination assignments and tests in Biology do not go beyond the scope of this programme, but require a deep study of all its elements. Successful answers to tasks require adequate and informed knowledge of biological concepts,

Past Tenses Test B1 Grammar Exercises

1. When Patricia _____ into her car, she remembered she _____ the water boiler on.A) was getting / has leftB) got / had leftC) had got / leavesD) got / was leaving 2. We _____ our meal on the train as it _____ across the beautiful countryside.A) have enjoyed / is goingB) enjoyed / had goneC) had been enjoying / has goneD) were enjoying / was going 3. They _____ for only a few minutes when they _____ a flat tyre.A) had been travelling / hadB) have travelled / were havingC) travelled / have hadD) were travelling / had 4.

Future Tenses Test B1 Grammar Exercises

1. Farmers hope the weather _____ at the weekend because it _____ bad for weeks now.A) will improve / has beenB) will have improved / will beC) improves / isD) is going to improve / was 2. The oil crisis _____ worse, and therefore, fuel prices _____ even more soon.A) gets / will have been risingB) will get / are risingC) is getting / are going to riseD) will have been getting / rise 3. Stop making fun of me or else I _____ mum about it.A) tellB) will have toldC) have been telkingD) will tell 4. _____ I pick

The Infinitive – The Gerund -Participles Test B1 Grammar Exercises

1. Somehow, he managed _____ the locked door without _____ it.A) to open / damagedB) opening / damagingC) to open / damagingD) opening / to damage 2. _____ alcohol with medication causes serious health issues _____.A) Taking / to occurB) To take / occurringC) Taking / occurringD) To take / to occurring 3. The text was too long for me _____ on my own so I asked Steve _____ me with it.A) to translate / helpedB) translating / to helpingC) to translate / to helpD) translating / help 4. I’d rather _____ a new television because it’s not worth _____

Modal Verbs Test B1 Grammar Exercises

1. You _____ join the meeting on Friday, but you _____ if you like.A) shouldn’t / were able toB) mustn’t / needn’tC) can’t / shouldn’tD) needn’t / can 2. _____ you read this text for me so that I _____ type it quickly?A) May / canB) Could / canC) Will / shouldD) Can / must 3. I’m sure you _____ why I wasn’t in the office yesterday. Well, I _____ a day off.A) must be wondering / had to takeB) don’t have to wonder / could takeC) needn’t wonder / must takeD) ought to wonder / my have take 4.

The Passive Test B1 Grammar Exercises

1. In parts of Anatolia, many different fruits _____ by many people in the sun for consumption duringwinter.A) have still driedB) are still driedC) still driedD) are still drying 2. The booklet _____ with such small letters that I _____ it well.A) is printed / couldn’t be readB) had been printing / can’t be readC) has printed / can’t readD) was printed / couldn’t read 3. It is quite expensive, but this detergent _____ better than the cheaper ones ever since it _____ to the market.A) has been sold / introducedB) sells / has introducedC) was sold / bed been

Clauses Test B1 Grammar Exercises

1. You need to do some more exercise _____ you become perfect in shape.A) due toB) untilC) byD) no sooner 2. The couple sitting before us kept talking _____ the movie.A) agoB) whileC) whenD) during 3. It was so unlucky that she had an accident _____ she got her driving licence.A) no soonerB) as soon asC) duringD) while 4. _____ the ambulance arrived at the hospital, the injured man had already died.A) By the timeB) WhilleC) AfterD) In case 5. He was lucky because he had _____ arrived at the bus stop _____ the bus came.A) no sooner / whenB)

Conditionals – Wishes – Would Rather / Had Better Test B1 Grammar Exercises

1. If I _______ very busy tomorrow, I _______ to your birthday party. I’m so sorry.A) won’t be / could have comeB) weren’t / would comeC) am not / will comeD) wasn’t / would have come 2. I wish she _______ me know about her visit a few days earlier, so I _______ some arrangements at work.A) has let / may be makingB) would let / might be madeC) lets / will be makingD) had let / could have made 3. If it _______ trouble you are looking for you _______ it very soon. Believe me!A) is / will getB)

Relatives Test B1 Grammar Exercises

1. The car alarm _____ went off ten minutes ago is still on.A) whoseB) whoC) whichD) when 2. The Moon, _____ diameter is only a fourth of the Earth, is the only natural satellite of the Earth.A) –B) whereC) thatD) whose 3. The burglar _____ no one saw entering the apartment stole jewellery worth a hundred thousand dollars.A) whomB) whichC) whyD) where 4. He panicked when he couldn’t find the key in his pocket _____ he always kept it.A) thatB) whoC) whereD) which 5. We hired a new engineer _____ worked for a big electronics company for years.A) whoseB) whereC)

Reported Speech Test B1 Grammar Exercises

1. Kirsten said that _____ would lend _____ her car if I needed it.A) he / meB) I / herC) she / meD) they / it 2. Scientists still have no answer to _____ there is life on other planets.A) thatB) whichC) whereD) whether 3. It _____ obvious that we _____ a big problem with our old car one day.A) was / will haveB) is / were havingC) is / haveD) was / would have 4. She _____ to us _____ there was nothing to worry about, but actually there was so much.A) told / thatB) said / –C) asked

Have Something Done Test B1 Grammar Exercises

1. We are planning to have our flat _____ this year.A) to paintB) paintedC) paintD) painting 2. She needs to _____ a molar tooth filled this afternoon.A) doB) letC) getD) make 3. We last _____ the carpets _____ a year ago; they now look dirty again.A) got / cleanB) get / cleanedC) have / cleanD) had / cleaned 4. Lucy _____ her hair _____ when I saw her at the hairdresser’s.A) had / doB) was having / doneC) has been having / doneD) got / doing 5. Tom _____ all his shirts and trousers _____ because he was going abroad

Nouns – Articles Test B1 Grammar Exercises

1. I wasn’t _____ only patient in the waiting room, so I looked through _____ magazines on the table to passthe time.A) an / –B) the / theC) – / –D) a / some 2. _____ Kizilirmak is the longest river and _____ Mount Agri is the highest mountain in Turkey.A) – / –B) The / theC) The / –D) – / the 3. There wasn’t any information on _____ departure time of _____ flight.A) the / theB) a / –C) the / anD) a / the 4. As it has _____ hostile environment, no human being can survive in

Adjectives – Adverbs – Comparisons Test B1 Grammar Exercises

1. My arm still hurts, but it’s not _____ bad _____ it was before.A) so / thatB) as / asC) enough / asD) too / to 2. My friends don’t agree with me, but I find maths _____ the other school subjects.A) less difficult thanB) difficult enoughC) so difficult thatD) more difficult 3. She finds even _____ rides in the amusement park so thrilling.A) less horrible thanB) horrible enoughC) the most horribleD) as horrible as 4. If you do it a little _____, I’m sure you can solve this question.A) carefulB) most carefullyC) the last carefulD) more carefully 5. This

Pronouns – Possessives – Demonstratives – Quantifiers Test B1 Grammar Exercises

1. Can you open the door, Mikel? _____ must be Mrs Morgan. _____ was going to come this afternoon.A) Someone / ItB) It / SheC) They / ItD) No one / She 2. Ed has finished the project, but _____ sister is still working on _____.A) his / hersB) her / theirC) their / his ownD) hers / her 3. _____ have found a nice flat in the city centre and _____ rent isn’t very high.A) I / hisB) They / theirsC) You / it’sD) We / its 4. _____ student at our college has a room of _____.A) Each

B1 Grammar Exercises

1. Turkey has a border with Georgia, _____?A) isn’t itB) haven’t theyC) hasn’t itD) doesn’t it 2. They never know where you are, _____?A) do theyB) don’t youC) will theyD) aren’t you 3. They hadn’t told us _____.A) where was the examB) what time the exam wasC) when was the exam going to startD) how long would the exam last 4. A: Are they going to give the party outdoors?     B: I _____ think _____.A) do / notB) don’t / soC) not / soD) don’t / not 5. Let’s fix a date for the next match, _____?A) isn’t itB)

Prepositions – Linking Words Test B1 Grammar Exercises

1. Peter had left his guitar _____ the bed before he got _____ his room.A) at / intoB) on / out ofC) in / towardsD) by / on 2. It takes about ten minutes to drive _____ this tunnel.A) throughB) acrossC) overD) among 3. Our next chemistry class is _____ 11 o ‘clock _____ Tuesday.A) in / fromB) on / byC) at / onD) around / in 4. As the truck was going slowly _____ the slope, I was driving right _____ it.A) off / in front ofB) down / betweenC) along / overD) up / behind 5. Because he

History of microbiology

1. According to Pasteur statements which one of the following is truea. Living organisms discriminate betweenstereoisomersb. Fermentation is a aerobic processc. Living organisms doesn’t discriminate between stereoisomersd. Both a and b 2. “I found floating therin earthly particles, some green streaks, spirally wound serpent-wise, and orderly arranged, the whole circumstance of each of these streaks was abut the thickness of a hair on one’s head”…. These words are ofa. Leeuwenhoek b. A. Jennerc. Pasteur d. Koch 3. The principle light- trapping pigment molecule in plants, Algae, and cyanobacteria isa. Chlorophyll a b. Chlorophyll bc. Porphyrin d. Rhodapsin 4. During Bio

Present Continuous Test A1 – A2 Grammar Exercises

1. A: _____ you _____ to me?B: Yes, I am.A) Am / listeningB) Can / listenC) Are / listeningD) Is / listening 2. He _____ a sweatsuit because he _____ to work today.He can have a rest at home.A) is wearing / isn’t goingB) isn’t wearing / is goingC) are wearing / aren’t goingD) aren’t wearing / are going 3. A: Where _____ you _____ in the middle of the night?     B: I’m not going anywhere.A) can / goingB) are / goingC) am / goingD) is / going 4. Janice and I are at the mall now. We _____

Cell The Unit Of Life Module

Q 1. Animal cells are connected by _______ Desmosome Cell wall Cell Membrane Plasmodesmata Answer – 4, PlasmodesmataExplanation: Plasmodesmata are thin strands of cytoplasm that connect the cytoplasm of adjacent cells, allowing for the exchange of materials such as proteins and ions. Animal cells are connected by plasmodesmata, while plant cells are connected by desmosomes and a cell wall surrounding them.   Q 2. The rRNA is synthesized by _________ Golgi body Nucleus Nucleolus Cytoplasm Answer – 3, NucleolusExplanation: The rRNA is synthesized by the Nucleolus. The Nucleolus is a specialized structure found in the nucleus of eukaryotic cells and is the site for

Cell Cycle and Cell Division Module

Q1. The process of appearance of recombination nodules occurs at which sub-stage of prophase I in meiosis? Diakinesis Zygotene Pachytene Diplotene Answer – 3, PachyteneExplanation: The process of the appearance of recombination nodules occurs during the Pachytene sub-stage of prophase I in meiosis. It is important to note that this is a very complex stage of meiosis and requires a thorough understanding to answer this question accurately.   Q2. Among eukaryotes, replication of DNA takes place in G2 Phase M phase S phase G1 phase Answer – 3, S phaseExplanation: Replication of DNA takes place in the S phase of the cell cycle. The

The Living World Module

Q 1. An attribute found in plants but not animals is Metabolism Sexual reproduction Autotrophy Asexual reproduction Answer: 3, AutotrophyExplanation: Autotrophy is an attribute found in plants but not animals. Autotrophs are organisms that make their food using a process known as photosynthesis, and they do not need any other organism to survive. On the other hand, animals rely on obtaining energy from their environment or from autotrophs, which can be through ingestion, absorption, or photosynthesis.   Q 2. Compared to genus, which of the following is less general in characters? Family Species pision Class Answer: 2, speciesExplanation: Species would be less general in

Respiration in Plants Module

Q1. What does the term “cellular respiration” refer to? Water decomposition, The breakdown of air to release energy, Food items decomposing to produce energy, Energy is released as soil breaks down. Answer- Option (3) is correct.Explanation: Cellular respiration is the process by which food components are broken down inside of a cell to produce energy, which is then captured to create ATP. Eukaryotes, which include all multicellular creatures and some single-celled species, generate energy through aerobic respiration. The most potent electron acceptor found in nature, oxygen, is used in aerobic respiration. Eukaryotes’ complex life functions and busy lives are made possible by

Animal Kingdom Module

Q 1. Which of the following developed for the first time in Annelids? Cephalization Development of a true coelom Metameric segmentation Both 2 and 3 Answer – 4, both 2 & 3Explanation: Cephalization, which is the concentration of nerve tissue at the anterior end of an organism, and metameric segmentation, which is the pision of the body into segments, are two significant evolutionary developments that first developed in Annelids. Animal Kingdom’s courses will teach you more about these biological phenomena and their influence on modern species.   Q 2. What is the most crucial reason for the immense success of arthropods? Chitinous

Photosynthesis In Higher Plants Module

Q 1. As a result of photorespiration, glycolate is converted into serine and carbon dioxide in the following ways: Mitochondria Chloroplasts Vacuoles Peroxisomes Answer: d, PeroxisomesExplanation: Photorespiration involves converting glycolate into serine and carbon dioxide in peroxisomes. Plants undergo photorespiration through the oxygenation of ribulose-1,5-bisphosphate (RuBP) instead of the desired carboxylation reaction, which is the outcome of photorespiration. Consequently, glycolate is formed, which needs to be salvaged to prevent carbon and energy loss. In the peroxisomes, glycolate is metabolized through a series of reactions known as the glycolate pathway. This pathway involves several enzymatic steps, leading to the conversion of glycolate into

Breathing And Exchange Of Gases Module

Q1. In humans, what is true about RBCs? They transport about 80% of oxygen, and the remaining 20% is dissolved in blood plasma. They transport 99.5% of oxygen About 20-25% of CO2 is carried by them CO2 is not held by them Answer – 2, They transport 99.5% of oxygenExplanation: Red blood cells (RBCs) transport 99.5% of Oxygen and carry about 20-25% of Carbon Dioxide (CO2). The remaining 0.5% of oxygen is transported in the dissolved state in blood plasma, while the rest of the CO2 is exhaled during respiration.   Q2. Pick the incorrect statement A bird’s ability to breathe efficiently

Digestion And Absorption Module

Q1. The release of pancreatic juice is stimulated by enterokinase cholecystokinin secretin Both 2 and 3 Answer – 4, Both 2 and 3Explanation: Both 2 and 3 are correct. Enterokinase, or enteropeptidase, is an enzyme in the small intestine responsible for activating trypsin from pancreatic juice. Cholecystokinin (CCK) is a hormone produced in the small intestine that stimulates the release of enzymes and bile from the pancreas and gall bladder. Secretin is another hormone in the small intestine that stimulates the pancreas to release watery juice-containing enzymes called pancreatic juice.   Q2. In vertebrates, lacteals are found in ileum ischium esophagus Ear

Excretory Products And Their Elimination Module

Q1. Nitrogenous waste is excreted in the form of pellets or paste by Pavo Ornithorhynchus Salamandra Hippocampus Answer – 1, PavoExplanation: Nitrogenous waste is excreted as pellets or paste by these animals. This excretion process, known as “uricotelism”, allows the organism to conserve water and eliminate nitrogenous waste products as a paste or a dry powder.   Q2. Which one of the following hormones reduces blood pressure? Antidiuretic hormone Atrial Natriuretic factor Aldosterone Angiotensin-ll Answer – 2, Atrial Natriuretic factorExplanation: The hormone responsible for reducing blood pressure is the Atrial Natriuretic Factor (ANF), released from the walls of the atria in response to increased

Human Physiology Module

Q 1. Among the glands mentioned below, which of the following is not involved in the process of digestion? Stomach Salivary Glands Adrenal Gland Liver Answer – Option (c) is correctExplanation: The Stomach is the site for digestion and secreted many enzymes that break down large macromolecules. The liver also contributes to digestion by releasing bile juice and other digestive enzymes. Salivary glands release saliva which breaks down carbohydrates in the food. Adrenal glands are not directly associated with digestion but the hormones secreted by them might regulate the metabolism of food.   Q 2. Which of the following statements correctly explains

Human Reproduction Module

Q 1. Which of the following organs serve as the primary reproductive organ in human males and females respectively? Testis in males and Ureter in females. Urethra in males and Ovary in females. Testis in males and Ovary in females. None of these. Answer- Option (3) is correct.Explanation: The primary reproductive organ of a human male is the testis because it produces and releases the male gametes or sperm. Similarly, in human females, the ovary produces and releases the female gametes or ova. When the two gametes(sperm and egg) fertilize, reproduction proceeds further and a new organism can be produced. The ureter

Air Pollution Module

Q 1. Which of the following assertions regarding SMOG is true? SMOG originates from fog. SMOG is formed from smoke. SMOG originates from water vapor. SMOG originates through the combination of fog and smoke. Answer- Option (1) is correct.Explanation: Neither fog nor smoke alone can result in smog. As the name suggests smoke is a combination of smoke and fog. When smoke released from burning fossil fuels, wood, etc combines with fog in the atmosphere, it results in smog which reduces visibility and makes breathing difficult. Water vapor directly does not result in smog formation.   Q 2. The main contributors of

Animal Physiology Module

Q 1. Because of the presence of _________, spider blood typically has a blue color. Hemerythrin Hemoglobin Hemocyanin none of the aforementioned. Answer- Option (3) is correct. Explanation: Haemoglobin is found in humans and other higher animals and it is red in color. Hemeeyrhtin is used for oxygen transport in marine invertebrates and it is colorless in the absence of oxygen but turns violet-pink when it is attached to oxygen. Hemocyanin is seen in arthropods, particularly spiders and it has a typical blur appearance which makes the spider’s blood blue.   Q 2. Which of the following organisms exhibits diploblastic organization? Hydra,

Genetics Module

Q 1. If a colorblind woman marries an average-visioned man, their sons will be Three-fourths colorblind and one-fourth normal One-half colorblind and one-half normal All normal visioned All colorblind Answer: a, Three-fourths colorblind and one-fourth normalExplanation: Color blindness is an X-linked recessive trait passed down from fathers to their sons. If both father and mother are carriers of the genetic trait (neither being colorblind), then there is a three in four chance that any son born to them will be colorblind.   Q 2. Which of the following is the significance of dominance? organisms with dominant genes have stronger vitality the dominant

Introduction to Bioinformatics Module

Q 1. Which of the options listed below is not the purpose of a sequence comparison? To identify any shared patterns between the two sequences. Investigating the physical characteristics of molecules To investigate evolutionary links To spot conservation trends Answer: Option(2) is correct.Explanation: A comparison is necessary to determine if it is likely that two sequences originated from the same sequence. Sequence comparison is also used to determine whether sequences from the database are comparable to the sequence in question.   Q 2. In the mutation process of a genetic algorithm, _______ no changes are made to the sequence changes are made

Sexual reproduction in flowering plants module

1. Perisperm is-(a) Degenerate secondary nucleus (b) Remnant of nucleus(c) Peripheral part of endosperm (d) Degenerate synergids 2. Which of the following fruit is a case of parthenogenesis?(a) Fruit without seeds after pollination(b) Fruit with seeds afterpollination(c) Fruit with viable seeds without fertilization(d) Fruit with viable seeds after fertilization. 3. If an endosperm cell of an angiosperm has 24 chromosomes, the root cell of megaspore mother cell should have-(a) 8 (b) 16 (c) 4 (d) 24 4. How many meiotic divisions are needed for forming 100 grains of wheat?(a) 100 (b) 25 (c) 50(d)20 5. Aleurone layer is present in(a)

500 MCQ in All Physiology subjects

1. Which subject deals with the integrated functions of the body.a. Histology b. Anatomy c. Physiology d. PsychologyCorrect answer ( c )   2. Which functional groups are formed by the association of various tissues.a. System b. Body c. Skeleton d. OrganCorrect answer (d ) 3. What is the thickness of cell membranea. 70-100ºA b. 100-150ºA c. 30-60ºA d. 10-20ºACorrect answer (a) 4. Cell physiology includes application of most of law’s of which subjects.a. Biology b. Chemistry c. Physics and Chemistry d. PhysicsCorrect answer ( c ) 5. The properties of cell that are equated with those of life includes.a.

Introduction to Biochemistry

1. A drug which prevents uric acid synthesis by inhibiting the enzyme xanthine oxidase is(A) Aspirin (B) Allopurinol(C) Colchicine (D) Probenecid 2. Which of the following is required for crystallization and storage of the hormone insulin?(A) Mn++ (B) Mg++(C) Ca++ (D) Zn++ 3. Oxidation of which substance in the body yields the most calories(A) Glucose (B) Glycogen(C) Protein (D) Lipids 4. Milk is deficient in which vitamins?(A) Vitamin C (B) Vitamin A(C) Vitamin B2 (D) Vitamin K 5. Milk is deficient of which mineral?(A) Phosphorus (B) Sodium(C) Iron (D) Potassium 6. Synthesis of prostaglandinsis is inhibited by(A) Aspirin (B) Arsenic(C)

Cytology Module

Directions: each of the following statements contains five suggested completions. Choose the one that is best in each case. 1. Each of the following statements concerning the plasmalemma is true, EXCEPT:    A – includes elementary cell membrane;     B – its supermembranous layer consists of glycolipids and glycoproteins;     C – its submembranous layer contains filaments and microtubules;     D – is a semi-permeable cell boundary;     E – is not an obligatory cell component. 2. The plasma membrane functions are as follows, EXCEPT:    A – is a selectively permeable barrier;    B –

Chapter 1 : Organisation of the Body

1. Which of the listed terms is described by: “All the chemical processes that take place in the organelles and cytoplasm the cells of the body”?A. MetabolismB. Cellular respirationC. HomeostasisD. Physiology Answer is A: The quoted statement is a definition of metabolism 2. Which major organ lies deep to the right hypochondriac region?A. The stomachB. The spleenC. The liverD. The duodenum Answer is C: hypochondriac = below the rib cartilage; liver is located mostly on the right side.   3. Which plane of the body divides it into dorsal and ventral regions?A. TransverseB. AxialC. CoronalD. Sagittal Answer is C: dorsal

Ecosystem Module

Question 1.Given below is one of the types of ecological pyramids. This type represents(a) Pyramid of numbers in a grassland(b) Pyramid of biomass in a follow land(c) Pyramid of biomass in a lake(d) Energy pyramid in a spring Answer: (c) Pyramid of biomass in a lake Question 2.Energy transferred from one trophic level to another(a) 5%(b) 10%(c) 15%(d) 20% Answer: (b) 10% Question 3.Maximum absorption of rainfall water is done by(a) Tropical deciduous forest(b) Tropical evergreen forest(c) Tropical savannah(d) Scrule forest Answer: (b) Tropical evergreen forest Question 4.Which of the following is called as a detrivore?(a) An animal feeding on

Present Continuous Test A1 – A2 Grammar Exercises

1. A: _____ you _____ to me?     B: Yes, I am.A) Am / listeningB) Can / listenC) Are / listeningD) Is / listening 2. He _____ a sweatsuit because he _____ to work today.He can have a rest at home.A) is wearing / isn’t goingB) isn’t wearing / is goingC) are wearing / aren’t goingD) aren’t wearing / are going 3. A: Where _____ you _____ in the middle of the night?     B: I’m not going anywhere.A) can / goingB) are / goingC) am / goingD) is / going 4. Janice and I are at the mall now.

Object Pronouns – The Imperative Test A1 – A2 Grammar Exercises

1. She can help _____ with the project, but her mother isill and she is staying with _____ at the hospitalnowadays.A) me / hersB) our / herC) us / herD) ours / she 2. _____ here. I want to show you something, but _____mum. It is a secret.A) You are coming / you can tellB) Don’t come / tellC) You can come / you are tellingD) Come / don’t tell 3. A: Please, _____ _____ the salt. The soup needs somesalt.     B: Here you are.A) pass / meB) don’t pass / youC) pass / itD) don’t pass / your

There is – There Are / Some – Any – No Test A1 – A2 Grammar Exercises

1. ______ Alex ______ at the moment? The light in hisroom is off.A) Do / sleepB) Are / sleepingC) Is / sleepingD) Does / sleep 2. A: Frances ______ meat, so let’s cook a vegetable dishfor her.     B: OK. I hope she ______ spinach because we have gotspinach.A) eats / likesB) doesn’t eat / likesC) eats / doesn’t likeD) doesn’t eat / like 3. A: ______ she ______ a big family ?     B: Yes, she does.A) Does / hasB) Has / gotC) Does / haveD) Have / got 4. Jack seldom ______ out on Sundays, but today he______

Present Simple Test A1 – A2 Grammar Exercises

1. ______ Alex ______ at the moment? The light in hisroom is off.A) Do / sleepB) Are / sleepingC) Is / sleepingD) Does / sleep 2. A: Frances ______ meat, so let’s cook a vegetable dishfor her.     B: OK. I hope she ______ spinach because we have gotspinach.A) eats / likesB) doesn’t eat / likesC) eats / doesn’t likeD) doesn’t eat / like 3. A: ______ she ______ a big family ?     B: Yes, she does.A) Does / hasB) Has / gotC) Does / haveD) Have / got 4. Jack seldom ______ out on Sundays, but today he______

Quantifiers 1 Test A1 – A2 Grammar Exercises

1. A: ______ coffee do you drink a day?     B: ______.A) How much / A fewB) How many / SomeC) How much / Not muchD) How many / A lot of 2. There aren’t ______ students on the campus today.A) a littleB) fewC) muchD) many 3. A: ______ people in my family eat meat.     B: What about you?     A: I usually eat ______ meat for lunch.A) Few / a littleB) Many / fewC) Much / someD) Little / lot 4. Carl has got ______ things to do, but he can handlevery ______ tasks today because he is

Past Simple ( Was /Were ) Test A1 – A2 Grammar Exercises

1. A: There _____ traffic jam on the bridge.B: No problem. I am taking the ferry today.A) areB) wasC) isD) were 2. There _____ any students on the campus yesterdaybecause they were away for a holiday.A) wasB) weren’tC) wasn’tD) were 3. _____ there a promising new band at the musicfestival last week?A) WasB) Weren’tC) Isn’tD) Were 4. There _____ a lot of roses in her garden because shelikes growing them.A) isB) wasC) wereD) are 5. I _____ in Germany last month and the people at thehotel _____ very friendly.A) were / wereB) am / areC) was / wereD) was /

Past Simple ( Regular / Irregular Verbs ) Test A1 – A2 Grammar Exercises

1. A: We _____ to the city museum three days ago.B: Oh, how nice!A) can goB) wentC) goD) are going 2. Victor _____ some bad news from Ted yesterday and_____ sad.A) is hearing / is becomingB) hears / becomesC) heard / becameD) can hear / become 3. _____ she _____ your books back last week?A) Can / bringB) Did / bringC) Does / bringD) Is / bringing 4. They often _____ questions in meetings. They justmake presentations.A) didn’t answerB) don’t answerC) aren’t answeringD) can answer 5. I _____ my house last week, but it _____ dirty againnow.A) cleaned / isB)

Present Perfect Test A1 – A2 Grammar Exercises

1. A: They aren’t at home. They __________ out.     B: OK. Can you give them this envelope?     A: Sure.A) are goingB) goC) can goD) have gone 2. William __________ a lot about 19th-century poetsrecently, and he __________ another book about thema few hours ago.A) is reading / has boughtB) read / can buyC) has read / boughtD) had read / bought 3. __________ you __________ your homework yet ?A) Do / doB) Did / doC) Can / doD) Have / done 4. The boy __________ all the questions in the testcorrectly yesterday.A) answeredB) has answeredC) is answeringD) can

Prepositions Of Time & Place & Movement Test A1 – A2 Grammar Exercises

1. A: When is his birthday?     B: It’s _____ January 19tlh.A) inB) onC) atD) up 2. Look at the helicopter _____ the air! It is pink!A) inB) upC) onD) at 3. Sally met John _____ the new cinema in Brooklyn, not_____ Ivy Street.A) on / inB) in / atC) at / onD) near / through 4. Marcy usually worked _____ the weekend _____ thepast.A) at / inB) on / fromC) in / betweenD) from / to 5. I was _____ Paris for a business trip _____ Christmas.A) on / toB) at / inC) in / atD) from / on

The Future Test A1 – A2 Grammar Exercises

1. Ian _____ classes next week because he _____ toanother town with the baseball team.A) is going to attend / will travelB) won’t attend / is travellingC) isn’t attending / won’t travelD) will attend / will travel 2. A: _____ their boss _____ them a pay rise?     B: No, he isn’t.A) Is / going to giveB) Will / giveC) Can / giveD) Does / give 3. A: Who will be the winner of the next game?     B: I think our team _____ the other team. I haveconfidence in them.A) is defeatingB) won’t defeatC) isn’t defeatingD) will defeat 4.

Adjectives / Adverbs / Comparisons Test A1 – A2 Grammar Exercises

1. Bob is 79. Valerie is 79, too, so she is _____ Bob.A) the oldestB) not as old asC) older thenD) as old as 2. A: Of all the cities in the world, which city is _____ tothe Equator?    B: Quito. It is only 15 miles to it.A) closer thanB) the closestC) closeD) as close as 3. A: Don’t forget to say “please ” when you wantsomething from someone, dear. It is _____.     B: I understand, mum.A) politerB) as polite asC) not as police asD) politer than 4. Alexander is 75 kilograms. Nick is 97 kilograms soAlexander is

A1 – A2 Grammar Exercises

1. A: _____ can solve this problem?B: Bob.A) WhatB) HowC) WhichD) Who 2. A: _____?     B: Yes, I am.A) Do you have breakfastB) Are you going to have breakfastC) Have you had breakfastD) Am I having breakfast 3. A: _____    B: No, I haven’t.A) Have I given you my number?B) Do you have a tape recorder?C) Have you got a pair of scissors?D) Did you give a party last night? 4. The little girl can hear us, _____?A) can sheB) can weC) can’t sheD) can’t we 5. A: _____ glass is this?     B: It’s Brad’s.A) WhoB) WhichC)

Modal Verbs Test A1 – A2 Grammar Exercises

1. A: You are ill. You _____ in the balcony. It isn’t warmoutside.     B: I’m wearing warm clothes. Don’t worry.A) needn’t sitB) can sitC) must sitD) mustn’t sit 2. A: I don’t want to leave my phone at the desk before Ienter the exam hall. _____?     B: Unfortunately, yes. It is the rule.A) Can IB) Must IC) May ID) Could I 3. A: You _____ wash those strawberries. I’ve alreadywashed them.    B: Oh, good. Thank you.A) needn’tB) mustC) couldn’tD) can 3. A: You _____ wash those strawberries. I’ve alreadywashed them.     B: Oh, good. Thank you.A) needn’tB)

Chemistry in Everyday Life Module

1. For medicinal chemists, the classification of medications based on is the most useful.a) pharmacological effectb) molecular targetsc) chemical structured) drug action Answer: bExplanation: Medicinal chemists are interested in the site where a drug will take effect, and they prescribe specific drugs to people based on their needs. This also includes the structure-based mechanism of pharmacological action on the target. 2. Which of the following medications is not classified according to the pharmacological effect criteria?a) Analgesicsb) Antisepticsc) Antihistaminesd) Antipyretics Answer: cExplanation: The pharmacological effects of medications are a group of drugs that all have the same effect on a specific

Polymers Module

1. Any substance made up of multiple repeating units called polymers is referred to as a polymer.a) Mersb) Plasticc) Resinsd) Blocks Answer: aExplanation: Any substance made up of multiple repeating units, known as mers, is referred to as a polymer. Polymers are made up of a large number of molecules connected together to form long chains. 2. Which of the following polymers does not fall within the configuration category?a) Cross-linkedb) Atacticc) Syndiotacticd) Isotactic Answer: aExplanation: The category of configuration does not include cross-linked polymers. The categories of configuration include syndiotactic, atactic, and isotactic. Within a macromolecule, tacticity refers to the

Biomolecules Module

1. A disaccharide is formed when two monosaccharides are bonded together by a bond.a) glycosidicb) peptidec) ionicd) phosphodiester Answer: aExplanation: When two monosaccharide units come together, they lose a molecule of water and form an oxide bond. The glycosidic linkage is a bond formed by an oxygen atom between two monosaccharide molecules. 2. Sucrose is a _____ chemical, and the hydrolysis product combination is ______in nature.a) dextrorotatory; dextrorotatoryb) laevorotatory; laevorotatoryc) laevorotatory; dextrorotatoryd) dextrorotatory; laevorotatory Answer: dExplanation: Sucrose is a dextrorotatory sugar that produces a combination of dextrorotatory glucose and laevorotatory fructose when hydrolyzed. The resultant mixture is laevorotatory because the

Amines Module

1. What is the most basic aromatic amine’s common name?a) Benzenamineb) Benzylaminec) Anilined) Aminobenzene Answer: cExplanation: The simplest amine is aniline, which has the formula C6H5NH2. This name is also recognised by the IUPAC. The IUPAC designation for it is benzenamine, although it’s also known as aminobenzene. 2. What is the correct name for a molecule that has two amino groups in opposing (para) locations around a benzene ring?a) Benzenediamineb) Benzene-1,4-diaminec) p-Aminoanilined) 4-Aminobenzenamine Answer: bExplanation: Both amino groups (in para positions to one other) are given equal weight and the primary complex is given the prefix di. The prefix is

Aldehydes, Ketones, and Carboxylic Acids Module

1. Which of the reactions below can result in ketones?a) Oxidation of primary alcoholsb) Oxidation of secondary alcoholsc) Dehydrogenation of tertiary alcoholsd) Dehydrogenation of primary alcohols Answer: bExplanation: Ketones are formed when secondary alcohols are oxidised and dehydrogenated. Aldehydes are produced by the same processes with primary alcohols. 2. The Rosenmund reaction can produce which of the following carbonyl compounds?a) Methanalb) Benzaldehydec) Butanoned) Acetone Answer: bExplanation: The Rosenmund reaction, which involves replacing chloride with hydrogen, is only utilised to make aldehydes. Methanal cannot be produced from this process because the acyl chloride that corresponds to it, formyl chloride, is unstable

Alcohols, Phenols, and Ethers Module

1. To get carboxylic acids directly from alcohol, which of the following oxidising agents is used?a) Alkaline KMnO4b) Aqueous KMnO4c) Acidified KMnO4d) Anhydrous CrO3 Answer: cExplanation: Strong oxidizers, such as acidified potassium permanganate or acidified potassium dichromate, convert alcohol to carboxylic acid immediately. Using CrO3 as the oxidising agent in an anhydrous media, however, only aldehyde can be produced. 2. When phenol reacts with bromine water, what is the result?a) Brown liquidb) Colourless gasc) White precipitated) No reaction Answer: cExplanation: When phenol is treated with bromine water, a white precipitate is formed, which is 2,4,6-Tribromophenol. 3. The Lucas test was carried

Haloalkanes and Haloarenes Module

1. What is the class of the substitution product of LiAlH4 and an alkyl halide reaction?a) Haloalkaneb) Alkyl nitritec) Nitroalkaned) Hydrocarbon Answer: dExplanation: The H atom in LiAlH4 acts as a nucleophile, attacking and substituting the halogen in the alkyl halide to generate the basic hydrocarbon. 2. Which of the following statements about SN2 mechanisms is incorrect?a) The transition state is stableb) The complete mechanism takes place in a single stepc) The rate of the reaction depends on the concentration of both reactantsd) There is an inversion of configuration Answer: aExplanation: The carbon atoms are concurrently attached to the entering nucleophile and the

Coordination Compounds Module

1. A coordination complex’s core atom/ion is also known as ________a) Bronsted-Lowry acidb) Lewis basec) Lewis acidd) Bronsted-Lowry base Answer: cExplanation: A Lewis acid is a species that has the ability to receive an electron pair. Lewis acids are all cations. It is a Lewis acid because the core atom of a coordination complex is metal and always accepts electrons. 2. Which of the following has a coordination number as a feature?a) Coordination entityb) Ligandc) Central atomd) Coordination compound Answer: cExplanation: The coordination number of a central metal ion in a complex, also known as the secondary valency, is defined as the

Molecular Basis of Inheritance Module

Question 1.In a DNA strand the nucleotides are linked together by(a) glycosidic bonds(b) phosphodiester bonds(c) peptide bonds(d) hydorgen bonds. Answer:(b) phosphodiester bonds   Question 2.The net electric charge on DNA and histones is(a) both positive(b) both negative(c) negative and positive, respectively(d) zero. Answer:(c) negative and positive, respectively   Question 3.Which of the following statements is the most appropriate for sickle cell anaemia ?(a) It cannot be treated with iron supplements.(b) It is a molecular disease.(c) It conferes resistance to acquiring malaria.(d) All of the above. Answer:(d) All of the above.   Question 4.The first genetic material could be(a) protein(b) cabohydrates(c)

Principles of Inheritance and Variation Module

Question 1.If a genetic disease is transferred from a phenotypically normal but carrier female to only some of the male progeny, the disease is(a) autosomal dominant(b) autosomal recessive(c) sex-linked dominant(d) sex-linked recessive. Answer:(d) sex-linked recessive.   Question 2.In sickle cell anaemia glutamic acid is replaced by valine. Which one of the following triplets codes for valine ?(a) GGG(b) A AG(c) G A A(d) GUG Answer:(d) GUG   Question 3.Person having genotype IA IB would show the blood group as AB. This is because of(a) pleiotropy(b) co-dominance(c) segregation(d) incomplete dominance. Answer:(b) co-dominance   Question 4.ZZ/ZW type of sex determination is seen

Human Reproduction Module

Question 1.Ovulation in the human female normally takes place during the menstrual cycle(a) at the mind secretory phase(b) just before the end of the secretory phase(c) at the beginning of the proliferative phase(d) at the end of the proliferative phase. Answer:(d) at the end of the proliferative phase.   Question 2.After ovulation Graafian follicle regresses into(a) corpus atresia(b) corpus callosum(c) corpus luteum(d) corpus albicans Answer:(c) corpus luteum   Question 3.Immediately after ovulation, the mammalian egg is covered by a membrane known as(a) chorion(b) zona pellucida(c) corona radiata(d) vitelline membrane. Answer:(c) corona radiata   Question 4.Which one of the following events

Sexual Reproduction in Flowering Plants Module

Question 1.What is the function of filiform apparatus in an angiospermic embryo sac?(a) Brings about opening of the pollen tube(b) Guides the pollen tube into a synergid(c) Prevents entry of more than one pollen tube into a synergid(d) None of these Answer:(b) Guides the pollen tube into a synergid Question 2.The female gametophyte of a typical dicot at the time of fertilisation is(a) 8 – celled(b) 7 – celled(c) 6 – celled(d) 5 – celled Answer:(b) 7 – celled Question 3.Polygonum type of embryo sac is(a) 8 – nucleate, 7 – celled(b) 8 – nucleate, 8 – celled(c) 7 –

Genes, Chromosomes and Genomes Module

1. The segregation of alleles on one trait did not have any effect on the segregation of alleles on a different trait. This is based on ____________a) Mendel’s law of Heredityb) Mendel’s law of Dominancec) Mendel’s law of Independent Assortmentd) Mendel’s law of Segregation Answer: cExplanation: There are three Mendel’s laws n Heredity. 1. The Mendel’s law of Dominance states that when a dominant individual is crossed with a recessive individual, the F1 generation offspring will exhibit the dominant trait. 2. According to Mendel’s law of Segregation, a pair of allele governing a single trait segregates from each other during

Enzymes as Biological Catalysts Module

1. Why are enzymes required?a) Enzymes help to yield more productb) Enzymes increase the activation energy of the reactionc) Enzymes decrease the activation energy of the reactiond) Enzymes maintain the equilibrium in the reaction Answer: cExplanation: Chemical reactions need certain covalent bond breakage within the reactants. For this, the reactants must contain sufficient kinetic energy called the activation energy. Enzymes act as catalysts that speed up the reaction by lowering the activation energy required for breaking the covalent bonds. 2. Competitive enzyme inhibitors are ________a) Reversible inhibitorsb) Irreversible inhibitorsc) Permanent inhibitorsd) None of the mentioned Answer: aExplanation: Irreversible inhibitors are

Biological Molecules Structures and Functions – Bonds Types Module

1. The electron clouds around the nucleus are of ___________a) Spherical shapeb) Spherical and Dumbbell shapec) Spherical and Hexagonal shaped) Cannot be determined Answer: bExplanation: Electrons swarm around the nucleus of an atom in a mostly unpredictable fashion. Erratic electron behaviour is best described by the electron cloud model. The electron cloud is an area around the nucleus of an atom where electrons are most likely to be found. The clouds are roughly defined by their boundaries which is either spherical or dumbbell shape. 2. Atoms or molecules having orbitals containing a single unpaired electron is known as ___________a) Captionsb)

Nucleic Acids Module

1. Which monomers compose the strands of nucleic acids?a) Amino acidsb) Ribosec) Functional groupsd) Nucleotides Answer: dExplanation: The strands of nucleic acids are composed of monomeric units called nucleotides. Nucleic acids are mainly the storage sites for genetic information and also have structural and catalytic functions. 2. What are the types of nucleic acids are found in living organisms?a) deoxyribonucleic acid & nucleotide acidb) deoxyribonucleic acid & ribonucleic acidc) ribonucleic acid & nucleotide acidd) ribonucleic acid & nucleoside acid Answer: bExplanation: Two types of amino acids are found in living organisms namely DNA (deoxyribonucleic acid) and RNA (ribonucleic acid). DNA

Proteins Module

1. In an amino acid, the carboxyl group and amino group are separated from each other by a single ____________ atom.a) nitrogenb) sulphurc) hydrogend) carbon Answer: dExplanation: Proteins are polymers containing amino acids as monomers. There are twenty different types of amino acids, with varying functional groups. Every amino acid has a carboxyl group and an amino group separated by a single carbon atom between them. 2. Amino acids used in the synthesis of proteins on a ribosome are ________________a) D-amino acidsb) Mutated amino acidsc) L-amino acidsd) Fluorescing amino acids Answer: cExplanation: Explanation: In most organisms including humans, the L

Lipids Module

1. Lipids cannot dissolve in _____________a) organic solventsb) chloroformc) benzened) water Answer: dExplanation: Lipids are vital biomolecules that have a characteristic property of being able to dissolve in organic solvents such as benzene and chloroform and their inability to dissolve in water. 2. Which types of bonds are found in fats?a) amideb) glycosidicc) esterd) acidic Answer: cExplanation: Fatty acids consist of one glycerol moiety linked to three fatty acids via ester bonds; the composite molecule is called triacylglycerol or neutral fat. 3. How many carboxyl groups are present in fatty acids?a) 1b) 2c) 3d) 4 Answer: aExplanation: Fatty acids are

Two Fundamentally Different Classes of Cells Module

1. The genetic material of a prokaryote is present in the ______________a) Nucleusb) Cytoplasmc) Nucleoidd) Plasmid Answer: cExplanation: Bacteria does not contain a true nucleus. Nucleoid is a poorly demarcated region of the cell that contains the bacterial genetic material or bacterial DNA. 2. Which of the following is not true for both prokaryotic and eukaryotic cells?a) Same composition of plasma membraneb) Both contain shared metabolic pathwaysc) Genetic information encoded in DNA with similar genetic coded) Both contain Golgi apparatus for protein trafficking Answer: dExplanation: Prokaryotic cells do not have organelles such as Golgi Apparatus. However, the composition of plasma

Carbohydrates Module

1. Heptoses are __________ a) sugars b) proteins c) amino acids d) monomers Answer: a Explanation: Heptoses are carbohydrates that contain 7 atoms of carbon. The sugars of importance in cellular metabolism contain 3 to 7 carbon atoms. 2. Fructose is a _____________ a) aldose sugar b) ketose sugar c) monosaccharide d) polymer Answer: b Explanation: Fructose is a ketose sugar because the carbonyl group (C==O) is located in an internal position to form a ketone group. If the carbonyl bond is located at one end of the sugar it is called aldose sugar. 3. The compounds which have same

Acids, Bases and Buffers Module

1. Which of the following is released when a Hydrogen atom loses an electron?a) Nucleusb) Protonc) Charged) Ion Answer: bExplanation: Whenever a hydrogen atom releases a shared electron in solution, a proton is also released. For example, acetic acid undergoes dissociation reaction to release acetate ion and a proton. 2. Which of the following is an example of amphoteric molecule?a) Acetic acidb) Malic acidc) Sugarsd) Water Answer: dExplanation: Water is an example of both an acid and a base, and is therefore an amphoteric molecule. It can accept a proton thereby acting as a base and can also donate a

The d & f Block Elements Module

1. As an electroplated protective covering, what metal is used?a) Plutoniumb) Chromiumc) Nickeld) Iron Answer: bExplanation: Chrome plating (or chromium plating, as it’s more generally known) is the process of electroplating a thin layer of chromium onto a metal item. The chromed coating might be attractive, provide corrosion protection, make cleaning easier, or increase the hardness of the surface. 2. __________ possesses the properties of both alkali metals and halogens.a) Heliumb) Hydrogenc) Sodiumd) Chlorine Answer: bExplanation: Because hydrogen’s outer shell configuration (that is 1s1) contains only one electron in the s-orbital, it qualifies as an Alkali metal. A noble gas structure, which

The p-Block Elements Module

1. What is created by the reaction of natural gas and steam in the Haber-Bosch process?a) Ammoniab) Nitrogenc) Oxygend) Hydrogen Answer: dExplanation: The steam reformation of methane is the reaction of natural gas and steam. It is a critical stage in the Bosch-Haber (industrial ammonia production process), which creates hydrogen gas, H2, as one of the two reactants alongside nitrogen in the production of ammonia in the presence of an iron catalyst. 2. What form does nitrogen take in plants?a) Ammoniab) Amidec) Nitrated) Nitrite Answer: cExplanation: Plants mostly absorb nitrogen in the form of nitrate ions, as well as ammonium

General Principles and Processes of Isolation of Elements Module

1. Which of the following is not a suitable ore for extracting iron?a) Hematiteb) Magnetitec) Siderited) Iron Pyrites Answer: dExplanation: FeS2 is the chemical formula for iron pyrite. Because iron pyrite is exothermic and poses a safety risk in mines, it is more cost-effective to extract iron from other ores like magnetite and hematite. Pyrites are generally unstable, and they have the potential to transform into sulphurous minerals. 2. Which of the following ore is used to extract silver?a) Calamineb) Cinnabarc) Argentited) Malachite Answer: cExplanation: Argentite, commonly known as a silver glance, is the only silver ore with the chemical composition

Surface Chemistry Module

1. When the molecules of a substance are kept at the surface of a solid or a liquid, what is the name of the process? a) Absorption b) Adsorption c) Sorption d) Desorption Answer: b Explanation: Adsorption is the process of a substance’s molecules accumulating in a larger concentration on the surface of a solid or a liquid. Gases, for example, adsorb on the surface of the charcoal. 2. Which of the following assertions about the extent of physisorption is correct? a) Increases with increase in temperature b) Decreases with increase in surface area c) Decreases with increase in the strength

Chemical Kinetics Module

1. The study of reaction kinetics is called __________.a) Rate of reactionb) Mechanism of reactionc) Factors which affect the rate of reactiond) All of the mentioned Answer: dExplanation: Reaction kinetics is the study of reaction rates, mechanisms, and the factors that influence reaction rates. 2. The reaction rate constant can be defined as the rate of reaction when each reactant’s concentration is ___________.a) Zerob) Unityc) Doubled the initial concentrationd) Infinite Answer: bExplanation: The reaction rate constant can be defined as the rate of the reaction when all of the reactants’ concentrations are unity. The rate of a chemical reaction is quantified by

Electrochemistry Module

1. A cathode and an anode are the most common components of an electrochemical cell. Which of the following claims about the cathode is correct?a) Oxidation occurs at the cathodeb) Electrons move into the cathodec) Usually denoted by a negative signd) Is usually made up of insulating material Answer: bExplanation: Metal electrodes are commonly used as cathodes. It is on this electrode that reduction occurs. In a galvanic cell, the cathode is the positive electrode, while in an electrolytic cell, it is the negative electrode. The cathode attracts electrons. 2. Which of the following claims about electrochemical cells is true?a) Cell potential

Infinitive Too & Enough – Gerund Test A1 – A2 Grammar Exercises

1.A: I want _____ something to you.    B: Let me _____. You lost my book. didn’t you?    A: Yes. How do you know it?    B: Somebody brought it back to me.A) telling / to guessB) tell / guessingC) to tell / guessD) tell / to guess 2. A: How did he manage _____ the prison?B: I don’t know, but obviously he really hated _____there.A) to escape / beB) escape / to beC) escaping / beD) to escape / being 3. A: You have promised _____ here on time, but you arelate again.     B: Sorry. I tried

A1, A2 Grammar Exercise

1. Aaron and Milan are friends and _______ of them go tothe same school. They are classmates, too.A) noneB) bothC) allD) neither 2. A: There are four radios in the attic.     B: Yes, but _______ of them work. They are _______broken.A) neither / noneB) all / bothC) both / neitherD) none /all 3. A: I have got two dictionaries, but _______ of theminclude the meaning of that word in it.     B: You can look it up in an online dictionary then.A) noneB) bothC) neitherD) all 3. A: I have got two dictionaries, but _______ of theminclude the meaning

English Quiz – Module 1

1. This photograph, ____ I took five years ago, shows theharbour quite well.A) whoB) whenC) whichD) what 2. The patient ____ by the doctor.A) has being examinedB) has examinedC) has examinedD) has been examined 3. They haven’t drunk anything ____.A) since five hoursB) since yesterday morningC) for five o’clockD) for yesterday morning 4. John has written a novel and ____ .A) so his sister, hasB) so got married his sisterC) so has his sisterD) so did his sister 5. Rose didn’t do anything yesterday, and ____ .A) nor JamesB) neither JamesC) James didn’t eitherD) James hadn’t either 6. He ____