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InterviewSolution
This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.
| 3351. |
Which Vitamin deficiency leads to cheilosis? (a) Vitamin B12 (b) Vitamin B6 (c) Vitamin B2 (d) Vitamin B5 |
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Answer» (c) Vitamin B2 |
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| 3352. |
Name the building blocks of proteins. |
| Answer» `alpha`-Amino acids | |
| 3353. |
What are oligosaccharides? |
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Answer» Carbohydrates which on hydrolysis give two to ten molecules of monosaccharide are called oligosaccharides. |
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| 3354. |
Give the two examples of fat soluble vitamins. |
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Answer» The two examples of fat soluble vitamins are as follows:- (i) Vitamin E (Tocopherol). (ii) Vitamin A (Retinol) |
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| 3355. |
Give the two examples of fat soluble vitamins. |
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Answer» The two examples of fat soluble vitamins are as follows:- (i) Vitamin E(Tocopherol). (ii) Vitamin A(Retinol). |
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| 3356. |
Which of the following is a water soluble vitamin ?A. Vitamin AB. Vitamin DC. Vitamin `B_(1)`D. Vitamin E |
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Answer» Correct Answer - C Vitamin `B_(1)` is a water soluble vitamin. |
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| 3357. |
Name the building blocks of proteins. |
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Answer» The building blocks of protein are α-amino acid. |
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| 3358. |
Deficiency of which vitamin causes beri-beri? |
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Answer» Deficiency of vitamin B1 causes beri-beri. |
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| 3359. |
Give the two examples of water soluble vitamins. |
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Answer» The example of water soluble vitamins is Thalamine and Ascorbic acid. |
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| 3360. |
Glucose does not react with :A. hydroxylamineB. conc `HNO_(3)`C. acetic anhydrideD. sodium bisulphite |
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Answer» Correct Answer - D Glucose does not react with `NaHSO_(3)` because it is not in a position to cause cleavage of the cyclic ring (`delta`-oxide ring) in glucose. |
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| 3361. |
Deficiency of which vitamin causes scurvy? |
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Answer» Deficiency of vitamin C causes scurvy. |
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| 3362. |
Which of the vitamins given below is water soluble ?A. Vitamin DB. Vitamin KC. Vitamin CD. Vitamin E |
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Answer» Correct Answer - C Vitamin-C is a water soluble vitamin. |
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| 3363. |
Which of the following bases is not present in DNA ?A. QuinolineB. AdenineC. CytosineD. Thymine |
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Answer» Correct Answer - A Quinoline is not present in DNA. |
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| 3364. |
(a) Name the branched chain component of starch. (b) Ribose in RNA and deoxyribose in DNA differ in the strucute around which carbon atom ? (c ) How many peptide linkages are present in a tripeptide ? |
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Answer» (a) It is Amylopection. (b) They differ in structure around C-2 carbon. (c ) Two peptide linkages are present. |
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| 3365. |
Which one of the following is not correct ?A. D(-) Fructose exists in furanose structureB. D(+) Glucose exists in pyranose structureC. In sucrose the two monosaccharides are held together by peptide linkageD. Maltose is a reducing sugar. |
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Answer» Correct Answer - C In sucrose, the two monosaccharides are held by glycosidic linkage. |
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| 3366. |
The sugar component in RNA molecule is :A. D-xyloseB. D-RiboseC. L-RiboseD. D-Glucose |
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Answer» Correct Answer - B D-Ribose is present in RNA molecule. |
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| 3367. |
Which of the following `alpha`-mino acids has a phenolic (-OH) group in the back bone ?A. PhenylalanineB. HistidineC. TyrosineD. Glutamic acid |
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Answer» Correct Answer - C Tyrosine is the correct Glucose answer. `H_(2)NCH_(2)-underset(COOH)underset("| ")("C ")H-C_(6)H_(4)(OH(P))` |
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| 3368. |
What are essential and non-essential amino acids? Give two examples of each. |
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Answer» The amino acids, which cannot be synthesised in the body and are supplied through diet are called essential amino acids. Examples : Lysine H2N-(CH2)4 -; Valine (CH3)2CH- The amino acids which are synthesized in the body are called non-essential amino acids. Examples : Glutamic acid HOO-CH2-CH2-; Serine HO-CH2- |
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| 3369. |
What are the essential and non-essential amino acids?Give two examples of each type. |
| Answer» `alpha-`Amino acids which are needed for health and growth of human beings but are not synthesised by the human body are called essential amino acids. For example, valine, leucine, phenylalanine, etc. On the other hand, `alpha`-amino acids which are needed for health and growth of human beings and are synthesised by the human body are called non-essential amino acids. For example, glycine, alanine, aspartic acid, etc. | |
| 3370. |
What do you mean by essential amino acids ? Give two examples for non essential amino acids ? |
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Answer» Essential amino acids: The amino acids which cannot be synthesized in the body and must be obtained through diet are known as essential aminoacids. Eg: valine, leucine etc. `to` Examples of non essential amino acids are alanine , glycine etc., |
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| 3371. |
What do you understand by invert sugars ? |
| Answer» During the hydrolysis of sucrose there is a change in the sign of rotation, from dextro (+) to laevo (-) and the product is named as invert sugar . | |
| 3372. |
How is glucose prepared ? |
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Answer» Glucose is prepared by the hydrolysis of strach in presence of little acid. `underset("starch")(C_6H_10O_5)_(n)+nH_2O underset(393K, 2-3 "atom")overset(H^+)(to) underset("glucose")(nC_6H_22O_6)` |
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| 3373. |
Define carbohydrates. |
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Answer» The compounds which are primarily produced by plants and form a very large group of naturally occuring organic compound are called carbohydrates . Eg : Glucose, Fructose, Stratch. `to` carbohydrates are the polyhydroxy aldehydes (or) ketones. |
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| 3374. |
Plant cell walls are made ofA. Homopolymer of fructoseB. Heteropolymer of glycogenC. Homopolymer of glucoseD. Homopolymer of glycogen |
| Answer» Correct Answer - C | |
| 3375. |
Which of the following is not a chemically modified sugar ?A. GlucosamineB. N-acetyl galactosamineC. Galacturonic acidD. Dihydroxy acetone |
| Answer» Correct Answer - D | |
| 3376. |
Name the different types of carbohydrates on the basis of their hydrolysis . Give one example for each. |
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Answer» Hydrolysis : On the basis of the hydrolysis, carbohydrates are classified as 1) Monosaccharides , Eg : Glucose , fructose `overset(H_2O)(to)` No saccharides 2) Oligosaccharides , Eg: Sucrose , maltose `overset(H_2O)(to)` two monosaccharides. 3) Polysaccharides , Eg : Starch , cellulose `overset(H_2O)(to)` large number of monosaccharides. |
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| 3377. |
As starch is related to plant body, which of the following polysaccharides is related to animal body ?A. CelluloseB. ChitinC. GlycogenD. Inulin |
| Answer» Correct Answer - C | |
| 3378. |
How are the carbohydrates classified on the basis of their functional groups |
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Answer» Functional groups : Carbohydrates classified into two types on the basis of functional group present. 1) Aldoses : Carbohydrates having aldehyde group . Eg : glucose 2) Ketoses : Carbohydrates having ketone group. Eg : fructose. |
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| 3379. |
What are Polysaccharides? |
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Answer» Polysaccharides are the complex carbohydrates and are the polymers of simple sugar molecules. |
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| 3380. |
What are 3 groups of Carbohydrates? |
Answer»
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| 3381. |
Name the bond formed between sugar molecules. |
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Answer» Glycosidic bond. |
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| 3382. |
What is a Glycosldlc bond? |
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Answer» The bond formed between two monosaccharides is called glycosidic bond. |
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| 3383. |
The metabollic pathways from glucose to pyruvic acid is called glycolysis and occurs inA. 9 metabolic stepsB. 10 metabolic stepsC. 11 metabolic stepsD. 12 metabolic steps. |
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Answer» Correct Answer - B (B) The metabolic pathway from glucose to pyruvic acid is called glycolysis and occurs in 10 metabolic steps. |
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| 3384. |
Which one of the following is called blood sugar?(a) Erythrose (b) Ribose (c) Ribulose (d) Glucose |
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Answer» Glucose is called blood sugar |
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| 3385. |
The protein which maintains the blood sugar level in the human body is ……(a) haemoglobin (b) oxytocin (c) insulin (d) ptyalin |
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Answer» The protein which maintains the blood sugar level in the human body is insulin |
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| 3386. |
Name a polypeptide hormone which maintains the glucose level in the blood. |
| Answer» Correct Answer - Insulin | |
| 3387. |
Each question has choices (a), (b), (c ) and (d) out of which ONLY ONR is correct. STATEMENT -1 : `NH_(2)-NH_(2)` gives prussian blue colour during Lassaigne test (element detection test). STATEMENT - 2 : NaCN gives prussian blue colour of `Fe_(4)[Fe(CN_(6))]_(3)" with " FeSO_(4),FeCl_(3)`A. Statement -1 is True, Statement-2 is True ,Statement -2 is a correct explanation for Statement -1.B. Statement -1 is True, Statement-2 is True ,Statement -2 is a NOT correct explanation for Statement -1.C. Statement -1 id True , Statement -2 is False.D. Statement -1 is False Statement -2 is True. |
| Answer» Correct Answer - d | |
| 3388. |
Each question has choices (a), (b), (c ) and (d) out of which ONLY ONR is correct. STATEMENT -1 : Number averge and mass average polymeric mass is mearly same in most of natural polymers. STATEMENT - 2 : Number of monomeric units are nearly mass is most of the matural polymers.A. Statement -1 is True, Statement-2 is True ,Statement -2 is a correct explanation for Statement -1.B. Statement -1 is True, Statement-2 is True ,Statement -2 is a NOT correct explanation for Statement -1.C. Statement -1 id True , Statement -2 is False.D. Statement -1 is False Statement -2 is True. |
| Answer» Correct Answer - a | |
| 3389. |
Each question has choices (a), (b), (c ) and (d) out of which ONLY ONR is correct. STATEMENT -1 : Oecron an complete hydrolysis produce ethulene glycol and phthalic acid. STATEMENT - 2 : Oecron is a copolymer.A. Statement -1 is True, Statement-2 is True ,Statement -2 is a correct explanation for Statement -1.B. Statement -1 is True, Statement-2 is True ,Statement -2 is a NOT correct explanation for Statement -1.C. Statement -1 id True , Statement -2 is False.D. Statement -1 is False Statement -2 is True. |
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Answer» Correct Answer - d It gives teraphthatic acid and ethylene glycol. |
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| 3390. |
Each question has choices (a), (b), (c ) and (d) out of which ONLY ONR is correct. STATEMENT -1 : Molecular mass of addition polymer is always greater than condensation polymer. STATEMENT - 2 : Smallar unit like `H_(2)O` or `NH_(3)` is eliminated in every chain growth step during formation of condensation polymer.A. Statement -1 is True, Statement-2 is True ,Statement -2 is a correct explanation for Statement -1.B. Statement -1 is True, Statement-2 is True ,Statement -2 is a NOT correct explanation for Statement -1.C. Statement -1 id True , Statement -2 is False.D. Statement -1 is False Statement -2 is True. |
| Answer» Correct Answer - d | |
| 3391. |
Each question has choices (a), (b), (c ) and (d) out of which ONLY ONR is correct. STATEMENT -1 : Mixture of glycine and glutonic acid can be separated by electro phorons. STATEMENT - 2 :particular pH both exist as oppositely changed ions.A. Statement -1 is True, Statement-2 is True ,Statement -2 is a correct explanation for Statement -1.B. Statement -1 is True, Statement-2 is True ,Statement -2 is a NOT correct explanation for Statement -1.C. Statement -1 id True , Statement -2 is False.D. Statement -1 is False Statement -2 is True. |
| Answer» Correct Answer - a | |
| 3392. |
Each question has choices (a), (b), (c ) and (d) out of which ONLY ONR is correct. STATEMENT -1 : Maltose and lactose can be differentiated by Fehling test. STATEMENT - 2 : Maltose is reducing but lactose is not.A. Statement -1 is True, Statement-2 is True ,Statement -2 is a correct explanation for Statement -1.B. Statement -1 is True, Statement-2 is True ,Statement -2 is a NOT correct explanation for Statement -1.C. Statement -1 id True , Statement -2 is False.D. Statement -1 and Satement - 2 both are False. |
| Answer» Correct Answer - d | |
| 3393. |
Each question has choices (a), (b), (c ) and (d) out of which ONLY ONR is correct. STATEMENT -1 : Prolin and alanine can be differentiated by ninhydrin test. STATEMENT - 2 : Prolin is a cyclic compound wheweas alanin is open chainA. Statement -1 is True, Statement-2 is True ,Statement -2 is a correct explanation for Statement -1.B. Statement -1 is True, Statement-2 is True ,Statement -2 is a NOT correct explanation for Statement -1.C. Statement -1 id True , Statement -2 is False.D. Statement -1 is False Statement -2 is True. |
| Answer» Correct Answer - b | |
| 3394. |
Diethly ether is safe to heat if it does not gives:A. blood red colour with `FeSo(4)`+KCNSB. blue colour with KL starchC. both (a) and (b)D. non of these |
| Answer» Correct Answer - c | |
| 3395. |
Herbivores can digest cellulose rich food, Why can’t human beings? |
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Answer» Human cannot digest cellulose but herbivores can digest them with the help of bacteria present in the gut which produces enzymes cellulase. This is an example of mutualism. |
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| 3396. |
Which of the following statement is correct about the mechanism of an enzyme-catallysed reaction?A. An enzyme begins its action by forming a monovalent enzyme-substrate complexB. An enzyme promotes the appropriate chemical reaction in the enzyme-subtract complex to give an enzyme-product complex?C. The formation of an enzyme-substrate complex, its conversion to enzyme-product complex and the decomposition of the latter to product and enzyme are all reversible reactionsD. All are correct |
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Answer» Correct Answer - D In case of enzymatic reaction, the enzyme is so built that it binds to the substrate in a specific manner. The enzymatic reaction may proceed through the following four stages: (i) the formation of complex between enzyme and substrate `(ES)`, (ii) the conversion of this complex to an enzymes intermediate complex `(EI)` and (iii) further conversion to a complex between enzyme and product `(EP)` and (iv) the dissociation of the enzyme - product complex leaving the enzyme enchanged. Enzyme + substrate `hArr` enzyme - substrate complex `hArr` enzyme - product Enzymes are needed only is small quantities for the progress or a reaction. Similar to the action of chemical catalysts, enzymes are said to reduce the magnitude of activation energy. For example, activation energy for acid hydrolysis of sucrose is `6.22 kJ mol^(-1)`, white the activation energy is only `2.15 kJ mol^(-1)` when hydrolysed by the enzyme, sucrase. |
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| 3397. |
Mark the wrong statement about denaturation of proteins.A. the primary structure of the protein does not changeB. globular protein are converted into fibrous proteinC. fibrous proteins are convereted into globular proteins .D. The biological activity of the protein change |
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Answer» Correct Answer - C By denaturation fibrous proteins are not converted into globular proteins. |
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| 3398. |
Which of the followings can bring about the denaturation of proteinsA. Reaction to salts of heavy metalsB. Reaction to acid and basesC. Reaction to inorganic neutral saltsD. Preservation at a temperature below-`5^(@)C` |
| Answer» Correct Answer - A::B::C | |
| 3399. |
Cattles can digest cellulose because their digestive system containsA. the enzyme `alpha`-amylase which cleaves cellulose into glucoseB. the enzyme `beta`-amylase which cleaves cellulose inot glucoseC. a kind of bacteria that secretes the enzymes cellulose which converts cellulose into glucoseD. all of these |
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Answer» Correct Answer - C Large population of celluloytic bacteria present in the stomach (rumen) of ruminant mammals (cattle,sheep etc). Breaks down cellulose with the help of enzymes cellulase. It is then digested and converted into glucose. Human stomach is different and does not have enzyme capable of breaking cellulose molecules. |
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| 3400. |
Which of the following is not correct for vitamins?A. They are organic compounds required in the diet in small amountsB. They perform specific biological functions for normal maintenance of optimal growth and health of the orgainsmC. Their deficiency causes specific diseaseD. Most of the vitamins are not synthesized in our body |
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Answer» Correct Answer - D Vitamins can be defined as essential dietary factors required by an organism in minute quantities and their absence causes specific deficiency diseaes. They are essential for life and a steady supply of these is required in food since the organism cannot synthesize these compounds. Plants can synthesise all vitamins whereas only a few are synthesized in animals . For example, the bacteria of the gut can produce some of the vitamins required by us. |
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