Biomolecules PYQs Set 4 (PDF)

Set 4 of 12 · Questions 91-120 of 335

In the print window choose “Save as PDF”. The file prints without a web address or date line.

Mere Teacher · Previous Year Questions JEE Main Chemistry · Biomolecules · Set 4 (Q91-120)
Scan or visit mereteacher.com for free PYQ practice, timed CBT tests, step-by-step solutions and BroBot AI. Answers and solutions are free with a sign-up.
91. $Match List I with List II. List I Enzyme A. Invertase B. Zymase C. Diastase D. Maltase List II Conversion of I. Starch into maltose II Maltose into glucose III. Glucose into ethanol IV. Cane sugar into glucose Choose the most appropriate answer from the options given below :$ (1) $A-III,B-IV.C-II.D-I$ (2) $A-III. B-II. C-I. D-IV$ (3) $A-IV, B-IIL C-I. D-II$ (4) $A-IV, B-II. C-III. D-I$ 92. $Compound A gives D-Galactose and D-Glucose on hydrolysis. The compound A is :$ (1) $Amylose$ (2) $Sucrose$ (3) $Maltose$ (4) $Lactose$ 93. $The α -Helix and β - Pleated sheet structures of protein are associated with its:$ (1) $tertiary structure$ (2) $quaternary structure$ (3) $secondary structure$ (4) $primary structure$ 94. $Match List I and List II List I Test (A) Molisch’s Test (B) Biuret Test (C) Carbylamine Test (D) Schiffs Test List II Functional group / Class of Compound (I) Peptide (II) Carbohydrate (III) Primary amine (IV) Aldehyde Choose the correct answer from the options given below:$ (1) $(A) -I, (B) - II, (C) - III, (D) - IV$ (2) $(A) - III, (B) - IV, (C) -I, (D) - II$ (3) $(A) - II, (B) -I, (C) - III, (D) - IV$ (4) $(A) - III, (B) - IV, (C) -II, (D) -I$ 95. $Identify the non-reducing sugar from the following:$ (1) $Maltose$ (2) $Sucrose$ (3) $Lactose$ (4) $Glucose$ 96. $Which one given below is a non‐reducing sugar.$ (1) $Glucose$ (2) $Sucrose$ (3) $Maltose$ (4) $Lactose$ 97. $The one that does not stabilize 2° and 3° structures of proteins is$ (1) $-S-S-linkage$ (2) $H-bonding$ (3) $-O-O-linkage$ (4) $van der Waals forces$ 98. $A tetrapeptide, " x " on complete hydrolysis produced glycine (Gly), alanine (Ala), valine (Val), leucine (Leu) in equimolar proportion each. The number of tetrapeptides (sequences) possible involving each of these amino acids is:$ (1) $32$ (2) $24$ (3) $8$ (4) $16$ 99. $Insulin and glucagon, which are responsible to maintain the blood glucose level, fall under$ (1) $antibodies$ (2) $harmones$ (3) $enzymes$ (4) $transport agents$ 100. $The reagents with which glucose does not react to give the corresponding tests/products are [NEET 2024] (A) Tollen's reagent (B) Schiff's reagent(C) HCN (D) NH_{2} OH (E) NaHSO_{3} Choose the correct options from the given below.$ (1) $B and C$ (2) $A and D$ (3) $B and E$ (4) $E and D$ 101. $Given below are two statements: Statement I: D-(+)-glucose + D-(+) fructose - H_{2} O Sucrose sucrose hydrolysis D - (+) glucose + D - (+) fructose Statement II: Invert sugar is formed during sucrose hydrolysis In the light of the above statements, choose the correct answer from the options given below$ (1) $Both Statement I and Statement II are False$ (2) $Statement I is false but Statement II are true$ (3) $Both Statement I and Statement II are true$ (4) $Statement I is true but Statement II is false$ 102. $Match List I and List II List I Vitamin (A) Vitamin A (B) Thiamine (C) Ascorbic acid (D) Riboflavin List II Deficiency disease (I) Beri-Beri (II) Cheilosis (III) Xerophthalmia (IV) Scurvy Choose the correct answer from the options given below$ (1) $A - III, B - I, C - IV, D - II$ (2) $A - IV, B - I, C - III, D - II$ (3) $A - IV, B - II, C - III, D - I$ (4) $A - III, B - II, C - IV, D - I$ 103. $Among the following compounds most basic amino acid is :$ (1) $Asparagine$ (2) $Lysine$ (3) $Serine$ (4) $Histidine$ 104. $Match List-I With List - II List - I (Saccharides) (A) Sucrose (B) Maltose (C) Lactose (D) Amylopectin List - II (Glycosidic-linkages found) (I) α 1 - 4 (II) α 1 - 4 and α 1 - 6 (III) α 1 - β 2 (IV) β 1 - 4 Choose the correct answer from the options given below:$ (1) $(A)-(IV), (B)-(II), (C)-(I), (D)-(III)$ (2) $(A)-(I), (B)-(II), (C)-(III), (D)-(IV)$ (3) $(A)-(III), (B)-(I), (C)-(IV), (D)-(II)$ (4) $(A)-(II), (B)-(IV), (C)-(III), (D)-(I)$ 105. $A vitamin X is soluble in fat and its source is egg yolk. Deficiency of X causes the disease$ (1) $Scurvy$ (2) $Convulsions$ (3) $Xerophthalmia$ (4) $Rickets$ 106. $A substance forms zwitter ion. It can have functional group.$ (1) $- N H_{2}, -COOH$ (2) $- N H_{2}, - S O_{3} H$ (3) $Both (a) and (b)$ (4) $None of these$ 107. $The change in the optical rotation of freshly prepared solution of glucose is known as:$ (1) $racemisation$ (2) $specific rotation$ (3) $mutarotation$ (4) $tautomerism$ 108. $The amount of sucrose needed to produce 1 mole of glucose using acid hydrolysis is$ (1) $360 g$ (2) $180 g$ (3) $342 g$ (4) $171 g$ 109. $Addison's disease is characterized by A. Hyperglycemia B. Weakness C. Increased susceptibility to stress D. Hypertension$ (1) $A, C$ (2) $A,D$ (3) $B, C$ (4) $B, D$ 110. $Compound A, C_{5} H_{10} O_{5}, given a tetraacetate with A c_{2} O and oxidation of A with B r_{2} - H_{2} O gives an acid, C_{5} H_{10} O_{6} . Reduction of A with HI gives isopentane. The possible structure of A is :$ (1) (2) (3) (4) $C H O - (C H O H)_{3} - C H_{2} O H$ 111. $A, B and C are three biomolecules. The results of the tests performed on them are given below: A, B and C are respectively: Molisch's Test Barfored Test Biuret Test (A) Positive Negative Negative (B) Positive Positive Negative (C) Negative Negative Positive$ (1) $A = Lactose, B = Glucose, C = Alanine$ (2) $A = Glucose, B = Fructose, C = Albumin$ (3) $A = Lactose, B = Glucose, C = Albumin$ (4) $A = Lactose, B = Fructose, C = Alanine$ 112. $Which of the following is not a fat soluble vitamin?$ (1) $Vitamin B complex$ (2) $Vitamin D$ (3) $Vitamin E$ (4) $Vitamin A$ 113. $Which among the following acts as a vitamin?$ (1) $Aspartic acid$ (2) $Ascorbic acid$ (3) $Saccharin acid$ (4) $Adipic acid$ 114. $Which of the following statements are true about carbohydrates? (i) Monosaccharides can be hydrolysed. (ii) The two monosaccharide units obtained on hydrolysis of a disaccharide can either be same or different. (iii) Polysaccharides are no sweet in taste. (iv) All monosaccharides are not reducing, sugars.$ (1) $(i) and (ii)$ (2) $(ii) and (iii)$ (3) $(iii) and (iv)$ (4) $(i) and (iv)$ 115. $Identify correct conversion during acidic hydrolysis from the following: (A) starch gives galactose. (B) cane sugar gives equal amount of glucose and fructose. (C) milk sugar gives glucose and galactose. (D) amylopectin gives glucose and fructose. (E) amylose gives only glucose. Choose the correct answer from the options given below:$ (1) $(A), (B) and (C) only$ (2) $(B), (C) and (E) only$ (3) $(C), (D) and (E) only$ (4) $(B), (C) and (D) only$ 116. $A tetrapeptide has -COOH group on alanine. This produces glycine (Gly), valine (Val), phenyl alanine (Phe) and alanine (Ala), on complete hydrolysis. For this tetrapeptide, the number of possible sequences (primary structures) with - N H_{2} group attached to a chiral center is :$ 117. $The total number of hydrogen bonds of a DNA-double Helix strand whose one strand has the following sequence of bases is . 5^{’} - G - G - C - A - A - A - T - C - G - G - C - T - A - 3^{’}$ 118. $The number of tripeptides formed by three different amino acids using each amino acid once is_______$ 119. $How many of the given compounds will give a positive Biuret test ______ ? Glycine, Glycylalanine, Tripeptide, Biuret$ 120. $The total number of correct statements, regarding the nucleic acids is A. RNA is regarded as the reserve of genetic information. B. DNA molecule self-duplicates during cell division C. DNA synthesizes proteins in the cell. D. The message for the synthesis of particular proteins is present in DNA E. Identical DNA strands are transferred to daughter cells.$