Biomolecules PYQs Set 4 (PDF)

Set 4 of 11 · Questions 91-120 of 309

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Mere Teacher · Previous Year Questions NEET Chemistry · Biomolecules · Set 4 (Q91-120)
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91. $Identify the non-reducing sugar from the following:$ (1) $Maltose$ (2) $Sucrose$ (3) $Lactose$ (4) $Glucose$ 92. $Which one given below is a non‐reducing sugar.$ (1) $Glucose$ (2) $Sucrose$ (3) $Maltose$ (4) $Lactose$ 93. $The one that does not stabilize 2° and 3° structures of proteins is$ (1) $-S-S-linkage$ (2) $H-bonding$ (3) $-O-O-linkage$ (4) $van der Waals forces$ 94. $A tetrapeptide, " x " on complete hydrolysis produced glycine (Gly), alanine (Ala), valine (Val), leucine (Leu) in equimolar proportion each. The number of tetrapeptides (sequences) possible involving each of these amino acids is:$ (1) $32$ (2) $24$ (3) $8$ (4) $16$ 95. $Insulin and glucagon, which are responsible to maintain the blood glucose level, fall under$ (1) $antibodies$ (2) $harmones$ (3) $enzymes$ (4) $transport agents$ 96. $The reagents with which glucose does not react to give the corresponding tests/products are [NEET 2024] (A) Tollen's reagent (B) Schiff's reagent(C) HCN (D) NH_{2} OH (E) NaHSO_{3} Choose the correct options from the given below.$ (1) $B and C$ (2) $A and D$ (3) $B and E$ (4) $E and D$ 97. $Given below are two statements: Statement I: D-(+)-glucose + D-(+) fructose - H_{2} O Sucrose sucrose hydrolysis D - (+) glucose + D - (+) fructose Statement II: Invert sugar is formed during sucrose hydrolysis In the light of the above statements, choose the correct answer from the options given below$ (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) $Statement I is true but Statement II is false$ 98. $Match List I and List II List I Vitamin (A) Vitamin A (B) Thiamine (C) Ascorbic acid (D) Riboflavin List II Deficiency disease (I) Beri-Beri (II) Cheilosis (III) Xerophthalmia (IV) Scurvy Choose the correct answer from the options given below$ (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) $A - III, B - II, C - IV, D - I$ 99. $Among the following compounds most basic amino acid is :$ (1) $Asparagine$ (2) $Lysine$ (3) $Serine$ (4) $Histidine$ 100. $Match List-I With List - II List - I (Saccharides) (A) Sucrose (B) Maltose (C) Lactose (D) Amylopectin List - II (Glycosidic-linkages found) (I) α 1 - 4 (II) α 1 - 4 and α 1 - 6 (III) α 1 - β 2 (IV) β 1 - 4 Choose the correct answer from the options given below:$ (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) $(A)-(II), (B)-(IV), (C)-(III), (D)-(I)$ 101. $A vitamin X is soluble in fat and its source is egg yolk. Deficiency of X causes the disease$ (1) $Scurvy$ (2) $Convulsions$ (3) $Xerophthalmia$ (4) $Rickets$ 102. $A substance forms zwitter ion. It can have functional group.$ (1) $- N H_{2}, -COOH$ (2) $- N H_{2}, - S O_{3} H$ (3) $Both (a) and (b)$ (4) $None of these$ 103. $The change in the optical rotation of freshly prepared solution of glucose is known as:$ (1) $racemisation$ (2) $specific rotation$ (3) $mutarotation$ (4) $tautomerism$ 104. $The amount of sucrose needed to produce 1 mole of glucose using acid hydrolysis is$ (1) $360 g$ (2) $180 g$ (3) $342 g$ (4) $171 g$ 105. $Addison's disease is characterized by A. Hyperglycemia B. Weakness C. Increased susceptibility to stress D. Hypertension$ (1) $A, C$ (2) $A,D$ (3) $B, C$ (4) $B, D$ 106. $Compound A, C_{5} H_{10} O_{5}, given a tetraacetate with A c_{2} O and oxidation of A with B r_{2} - H_{2} O gives an acid, C_{5} H_{10} O_{6} . Reduction of A with HI gives isopentane. The possible structure of A is :$ (1) (2) (3) (4) $C H O - (C H O H)_{3} - C H_{2} O H$ 107. $A, B and C are three biomolecules. The results of the tests performed on them are given below: A, B and C are respectively: Molisch's Test Barfored Test Biuret Test (A) Positive Negative Negative (B) Positive Positive Negative (C) Negative Negative Positive$ (1) $A = Lactose, B = Glucose, C = Alanine$ (2) $A = Glucose, B = Fructose, C = Albumin$ (3) $A = Lactose, B = Glucose, C = Albumin$ (4) $A = Lactose, B = Fructose, C = Alanine$ 108. $Which of the following is not a fat soluble vitamin?$ (1) $Vitamin B complex$ (2) $Vitamin D$ (3) $Vitamin E$ (4) $Vitamin A$ 109. $Which among the following acts as a vitamin?$ (1) $Aspartic acid$ (2) $Ascorbic acid$ (3) $Saccharin acid$ (4) $Adipic acid$ 110. $Which of the following statements are true about carbohydrates? (i) Monosaccharides can be hydrolysed. (ii) The two monosaccharide units obtained on hydrolysis of a disaccharide can either be same or different. (iii) Polysaccharides are no sweet in taste. (iv) All monosaccharides are not reducing, sugars.$ (1) $(i) and (ii)$ (2) $(ii) and (iii)$ (3) $(iii) and (iv)$ (4) $(i) and (iv)$ 111. $Identify correct conversion during acidic hydrolysis from the following: (A) starch gives galactose. (B) cane sugar gives equal amount of glucose and fructose. (C) milk sugar gives glucose and galactose. (D) amylopectin gives glucose and fructose. (E) amylose gives only glucose. Choose the correct answer from the options given below:$ (1) $(A), (B) and (C) only$ (2) $(B), (C) and (E) only$ (3) $(C), (D) and (E) only$ (4) $(B), (C) and (D) only$ 112. $The incorrect statement about Glucose is :$ (1) $Glucose is soluble in water because of having aldehyde functional group$ (2) $Glucose remains in multiple isomeric form in its aqueous solution$ (3) $Glucose is one of the monomer unit in sucrose$ (4) $Glucose is an aldohexose$ 113. $Match List I with List II List - I A. α - Glucose and α - Galactose B. α - Glucose and β - Glucose C. α - Glucose and α - Fructose D. α - Glucose and α - Ribose List - II I. Functional isomers II. Homologous III. Anomers IV. Epimers Choose the correct answer from the options given below:$ (1) $A-IV, B-III, C-I, D-II$ (2) $A-III, B-IV, C-I, D-II$ (3) $A-IV, B-III, C-II, D-I$ (4) $A-III, B-IV, C-II, D-I$ 114. $The presence or absence of hydroxy group on which carbon atom of sugar differentiates RNA and DNA.$ (1) $1^{s t}$ (2) $2^{n d}$ (3) $3^{r d}$ (4) $4^{t h}$ 115. $Deficiency of vitamin B_{1} causes the disease$ (1) $convulsions$ (2) $beri‐beri$ (3) $cheilosis$ (4) $sterility$ 116. $Match List-I with List-II. List I (A) Sucrose (B) Lactose (C) Maltose List-II (I) β -D-Galactose and β -D-Glucose (II) α -D-Glucose and β -D-Fructose (III) α -D-Glucose and α -D-Glucose Choose the correct answer from the options given below:$ (1) $(A)-(III), (B)-(II), (C)-(I)$ (2) $(A)-(III), (B)-(I), (C)-(II)$ (3) $(A)-(I), (B)-(III), (C)-(II)$ (4) $(A)-(II), (B)-(I), (C)-(III)$ 117. $Amino acids containing heterocyclic ring are (i) Histidine (ii) Valine (iii) Arginine (iv) Proline$ (1) $(i), (iv)$ (2) $(ii), (iii)$ (3) $(i), (iii)$ (4) $(ii), (iv)$ 118. $C_{12} H_{22} O_{11} + H_{2} O Sucrose \to Enzyme A C_{6} H_{12} O_{6} Glucose + C_{6} H_{12} O_{6} Fructose C_{6} H_{12} O_{6} \to Enzyme B 2 C_{2} H_{5} OH + 2 CO_{2} In the above reactions, the enzyme A and enzyme B respectively$ (1) $Amylase and Invertase$ (2) $Invertase and Amylase$ (3) $Invertase and Zymase$ (4) $Zymase and Invertase$ 119. $(peptide bond).Which statement is incorrect about peptide bond?$ (1) $C - N bond length in proteins is longer than usual bond length of N - C bond.$ (2) $Spectroscopic analysis shows planar structure of - C - N H ‐group. 011$ (3) $C - N bond length in proteins is smaller than usual bond length of C‐N bond.$ (4) $None ofthe above$ 120. $Which of the following compounds is a constituent of the polymer ?$ (1) $N-Methyl urea$ (2) $Formaldehyde$ (3) $Methylamine$ (4) $Ammonia$