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Biomolecules

181 questions · Chemistry · JEE Main
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Biomolecules

181 questions · Chemistry · JEE Main

  1. Identify the correct statement among the following :2025 · 2 Apr · Shift 1 · Q17 · MCQ
  2. 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 :2025 · 2 Apr · Shift 2 · Q4 · MCQ
  3.  Which of the following is the correct structure of L-Fructose? 2025 · 3 Apr · Shift 1 · Q16 · MCQ
  4. Fat soluble vitamins are: A. Vitamin B1​ B. Vitamin C C. Vitamin E D. Vitamin B 12 E. Vitamin K Choose the correct answer from the options given below:2025 · 3 Apr · Shift 2 · Q2 · MCQ
  5. Identify the pair of reactants that upon reaction, with elimination of HCl will give rise to the dipeptide Gly-Ala.2025 · 4 Apr · Shift 1 · Q18 · MCQ
  6. 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′…2025 · 4 Apr · Shift 1 · Q25 · Numerical
  7. A dipeptide, " x" on complete hydrolysis gives "y" and "z". "y" on treatment with aq. HNO2​ produces lactic acid. On the other hand " z " on heating gives the following cyclic molecule. Based on the information given,… Includes diagram2025 · 4 Apr · Shift 2 · Q19 · MCQ
  8. Given below are two statements: Statement I: D-(+)-glucose + D-(+) fructose −H2​O​ Sucrose  sucrose  hydrolysis ​D−(+) glucose +D−(+) fructose …2025 · 7 Apr · Shift 1 · Q13 · MCQ
  9. Given below are two statements : Statement (I) : On hydrolysis, oligo peptides give rise to fewer number of α-amino acids while proteins give rise to a large number of β-amino acids. Statement (II) : Natural proteins are denatured by acids…2025 · 7 Apr · Shift 2 · Q3 · MCQ
  10. Which of the following acids is a vitamin ?2025 · 22 Jan · Shift 1 · Q17 · MCQ
  11. Identify the number of structure/s from the following which can be corelated to D-glyceraldehyde. Includes diagram2025 · 22 Jan · Shift 2 · Q6 · MCQ
  12. Given below are two statements: Statement I: Fructose does not contain an aldehydic group but still reduces Tollen's reagent Statement II: In the presence of base, fructose undergoes rearrangement to give glucose. In the light of the above…2025 · 23 Jan · Shift 1 · Q12 · MCQ
  13. The α-Helix and β - Pleated sheet structures of protein are associated with its :2025 · 23 Jan · Shift 2 · Q7 · MCQ
  14. The carbohydrate "Ribose" present in DNA, is A. A pentose sugar B. present in pyranose from C. in "D" configuration D. a reducing sugar, when free E. in ∝-anomeric form Choose the correct answer from the options given below:2025 · 24 Jan · Shift 1 · Q16 · MCQ
  15. Match List - I with List - II. Choose the correct answer from the options given below : Includes table Includes diagram2025 · 24 Jan · Shift 2 · Q10 · MCQ
  16. Given below are two statements: Statement I : D-glucose pentaacetate reacts with 2,4 -dinitrophenylhydrazine Statement II : Starch, on heating with concentrated sulfuric acid at 100∘C and 2−3atmosphere…2025 · 28 Jan · Shift 1 · Q3 · MCQ
  17. 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…2025 · 28 Jan · Shift 2 · Q11 · MCQ
  18. Match List-I with List-II. Choose the correct answer from the options given below : Includes table2025 · 28 Jan · Shift 2 · Q6 · MCQ
  19. Match List - I with List - II. Choose the correct answer from the options given below : Includes table2025 · 29 Jan · Shift 1 · Q3 · MCQ
  20. Identify the essential amino acids from below: (A) Valine (B) Proline (C) Lysine (D) Threonine (E) Tyrosine Choose the correct answer from the options given below:2025 · 29 Jan · Shift 2 · Q2 · MCQ
  21. If one strand of a DNA has the sequence ATGCTTCA, sequence of the bases in complementary strand is :2024 · 1 Feb · Shift 1 · Q16 · MCQ
  22. The number of tripeptides formed by three different amino acids using each amino acid once is ​.2024 · 1 Feb · Shift 2 · Q21 · Numerical
  23. Which of the following is the correct structure of L-Glucose?2024 · 4 Apr · Shift 1 · Q9 · MCQ
  24. Match List I with List II Choose the correct answer from the options given below: Includes table2024 · 4 Apr · Shift 2 · Q2 · MCQ
  25. Which of the following gives a positive test with ninhydrin ?2024 · 5 Apr · Shift 1 · Q5 · MCQ
  26. Coagulation of egg, on heating is because of :2024 · 5 Apr · Shift 2 · Q13 · MCQ
  27. DNA molecule contains 4 bases whose structure are shown below. One of the structures is not correct, identify the incorrect base structure.2024 · 6 Apr · Shift 1 · Q18 · MCQ
  28. The incorrect statements regarding enzymes are : (A) Enzymes are biocatalysts. (B) Enzymes are non-specific and can catalyse different kinds of reactions. (C) Most Enzymes are globular proteins. (D) Enzyme - oxidase catalyses the…2024 · 6 Apr · Shift 2 · Q16 · MCQ
  29. The incorrect statement regarding the given structure is Includes diagram2024 · 8 Apr · Shift 1 · Q19 · MCQ
  30. The total number of carbon atoms present in tyrosine, an amino acid, is ​.2024 · 8 Apr · Shift 2 · Q24 · Numerical
  31. Total number of essential amino acid among the given list of amino acids is ​. Arginine, Phenylalanine, Aspartic acid, Cysteine, Histidine, Valine, Proline2024 · 9 Apr · Shift 1 · Q22 · Numerical
  32. The F− ions make the enamel on teeth much harder by converting hydroxyapatite (the enamel on the surface of teeth) into much harder fluoroapatite having the formula.2024 · 9 Apr · Shift 1 · Q6 · MCQ
  33. The incorrect statement about Glucose is :2024 · 9 Apr · Shift 2 · Q17 · MCQ
  34. Two nucleotides are joined together by a linkage known as :2024 · 27 Jan · Shift 1 · Q1 · MCQ
  35. Which structure of protein remains intact after coagulation of egg white on boiling?2024 · 27 Jan · Shift 2 · Q6 · MCQ
  36. Number of compounds among the following which contain sulphur as heteroatom is ​. Furan, Thiophene, Pyridine, Pyrrole, Cysteine, Tyrosine2024 · 29 Jan · Shift 1 · Q29 · Numerical
  37. Type of amino acids obtained by hydrolysis of proteins is :2024 · 29 Jan · Shift 1 · Q9 · MCQ
  38. Match List I with List II Choose the correct answer from the options given below: Includes table2024 · 29 Jan · Shift 2 · Q2 · MCQ
  39. Sugar which does not give reddish brown precipitate with Fehling's reagent, is :2024 · 30 Jan · Shift 1 · Q13 · MCQ
  40. 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…2024 · 30 Jan · Shift 2 · Q21 · Numerical
  41. Match List I with List II Choose the correct answer from the options given below: Includes table2024 · 31 Jan · Shift 1 · Q1 · MCQ
  42. From the vitamins A,B1​, B6​, B12​,C,D,E and K, the number of vitamins that can be stored in our body is ​.2024 · 31 Jan · Shift 2 · Q21 · Numerical
  43. The correct representation in six membered pyranose form for the following sugar [X] is Includes diagram2023 · 1 Feb · Shift 1 · Q4 · MCQ
  44. Match List I with List II Choose the correct answer from the options given below : Includes table2023 · 1 Feb · Shift 1 · Q7 · MCQ
  45. Testosterone, which is a steroidal hormone, has the following structure. The total number of asymmetric carbon atom/s in testosterone is ​. Includes diagram2023 · 1 Feb · Shift 2 · Q18 · Numerical
  46. All structures given below are of vitamin C. Most stable of them is :2023 · 1 Feb · Shift 2 · Q2 · MCQ
  47. Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A) : α-halocarboxylic acid on reaction with dil. NH3​ gives good yield of α-amino carboxylic…2023 · 1 Feb · Shift 2 · Q7 · MCQ
  48. Match List I with List II Choose the correct answer from the options given below: Includes table2023 · 6 Apr · Shift 1 · Q10 · MCQ
  49. Match List I with List II Choose the correct answer from the options given below: Includes table2023 · 6 Apr · Shift 2 · Q13 · MCQ
  50. Sulphur (S) containing amino acids from the following are: (a) isoleucine (b) cysteine (c) lysine (d) methionine (e) glutamic acid2023 · 8 Apr · Shift 1 · Q11 · MCQ
  51. Match List I with List II Choose the correct answer from the options given below: Includes table2023 · 8 Apr · Shift 2 · Q10 · MCQ
  52. The one that does not stabilize 2 ∘ and 3 ∘ structures of proteins is2023 · 10 Apr · Shift 1 · Q3 · MCQ
  53. L-isomer of tetrose X(C4​H8​O4​) gives positive Schiff's test and has two chiral carbons. On acetylation, 'X' yields triacetate. 'X' also undergoes following… Includes diagram2023 · 11 Apr · Shift 1 · Q13 · MCQ
  54. Number of compounds from the following which will not produce orange red precipitate with Benedict solution is ​. Glucose, maltose, sucrose, ribose, 2-deoxyribose, amylose, lactose2023 · 11 Apr · Shift 2 · Q18 · Numerical
  55. In an oligopeptide named Alanylglycylphenyl alanyl isoleucine, the number of sp2 hybridised carbons is ​.2023 · 12 Apr · Shift 1 · Q14 · Numerical
  56. The products formed in the above reaction are Includes diagram2023 · 13 Apr · Shift 1 · Q12 · MCQ
  57. The naturally occurring amino acid that contains only one basic functional group in its chemical structure is2023 · 13 Apr · Shift 2 · Q6 · MCQ
  58. Which is not true for arginine?2023 · 15 Apr · Shift 1 · Q6 · MCQ
  59. Uracil is a base present in RNA with the following structure. % of N in uracil is ​ Given: Molar mass N = 14 g mol −1 O = 16 g mol −1 C = 12 g mol −1 H = 1 g mol −1 Includes diagram2023 · 24 Jan · Shift 1 · Q17 · Numerical
  60. Total number of tripeptides possible by mixing of valine and proline is ​2023 · 24 Jan · Shift 2 · Q15 · Numerical
  61. Match items of Row I with those of Row II. Row I : Row II : (i) α-D-(−)-Fructofuranose(ii) β-D-(−)-Fructofuranose (iii) α-D-(−) Glucopyranose (iv) β-D-(−)-Glucopyranose Correct match… Includes diagram2023 · 25 Jan · Shift 1 · Q4 · MCQ
  62. Number of cyclic tripeptides formed with 2 amino acids A and B is :2023 · 29 Jan · Shift 1 · Q6 · MCQ
  63. Following tetrapeptide can be represented as (F, L, D, Y, I, Q, P are one letter codes for amino acids) Includes diagram2023 · 29 Jan · Shift 2 · Q10 · MCQ
  64. Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A) : Ketoses give Seliwanoff's test faster than Aldoses. Reason (R) : Ketoses undergo β-elimination followed by…2023 · 30 Jan · Shift 1 · Q4 · MCQ
  65. A short peptide on complete hydrolysis produces 3 moles of glycine (G), two moles of leucine (L) and two moles of valine (V) per mole of peptide. The number of peptide linkages in it are ​.2023 · 30 Jan · Shift 2 · Q16 · Numerical
  66. A protein 'X' with molecular weight of 70,000 u, on hydrolysis gives amino acids. One of these amino acid is2023 · 31 Jan · Shift 1 · Q9 · MCQ
  67. A polysaccharide 'X' on boiling with dil H2​SO4​ at 393 K under 2-3 atm pressure yields 'Y'. 'Y' on treatment with bromine water gives gluconic acid. 'X' contains β-glycosidic linkages only. Compound 'X' is :2022 · 24 Jun · Shift 1 · Q11 · MCQ
  68. In alanylglycyl leucyl alanyl valine, the number of peptide linkages is ​.2022 · 24 Jun · Shift 2 · Q21 · Numerical
  69. During the denaturation of proteins, which of these structures will remain intact?2022 · 25 Jul · Shift 1 · Q10 · MCQ
  70. Glycosidic linkage between C1 of α-glucose and C2 of β-fructose is found in2022 · 25 Jul · Shift 2 · Q12 · MCQ
  71. How many of the given compounds will give a positive Biuret test ​ ? Glycine, Glycylalanine, Tripeptide, Biuret2022 · 25 Jun · Shift 2 · Q21 · Numerical
  72. Which one of the following is a reducing sugar?2022 · 26 Jul · Shift 1 · Q14 · MCQ
  73. Animal starch is the other name of2022 · 26 Jul · Shift 2 · Q11 · MCQ
  74. The number of oxygens present in a nucleotide formed from a base, that is present only in RNA is ​.2022 · 26 Jun · Shift 1 · Q20 · Numerical
  75. Which one of the following is a water soluble vitamin, that is not excreted easily?2022 · 26 Jun · Shift 2 · Q15 · MCQ
  76. Match List-I with List-II Choose the most appropriate answer from the options given below : Includes table2022 · 26 Jun · Shift 2 · Q2 · MCQ
  77. A sugar 'X' dehydrates very slowly under acidic condition to give furfural which on further reaction with resorcinol gives the coloured product after sometime. Sugar 'X' is2022 · 27 Jul · Shift 1 · Q11 · MCQ
  78. Match List - I with Match List - II. Choose the correct answer from the options given below: Includes table2022 · 27 Jul · Shift 2 · Q12 · MCQ
  79. L-isomer of a compound 'A' (C4​H8​O4​) gives a positive test with [Ag(NH3​)2​]+. Treatment of 'A' with acetic anhydride yields triacetate derivative. Compound 'A' produces an optically active compound (B) and an optically inactive…2022 · 27 Jun · Shift 1 · Q10 · MCQ
  80. Given below are two statements. Statement I : Maltose has two α-D-glucose units linked at C1 and C4 and is a reducing sugar. Statement II : Maltose has two monosaccharides : α-D-glucose and β-D-glucose linked at C1 and…2022 · 27 Jun · Shift 2 · Q13 · MCQ
  81. For the below given cyclic hemiacetal (X), the correct pyranose structure is : Includes diagram2022 · 28 Jul · Shift 1 · Q12 · MCQ
  82. The formulas of A and B for the following reaction sequence are Includes diagram2022 · 28 Jul · Shift 2 · Q12 · MCQ
  83. Stability of α-Helix structure of proteins depends upon2022 · 28 Jun · Shift 1 · Q12 · MCQ
  84. When sugar 'X' is boiled with dilute H2​SO4​ in alcoholic solution, two isomers 'A' and 'B' are formed. 'A' on oxidation with HNO3​ yields saccharic acid where as 'B' is laevorotatory. The compound 'X' is :2022 · 28 Jun · Shift 2 · Q12 · MCQ
  85. In a linear tetrapeptide (Constituted with different amino acids), (number of amino acids) − (number of peptide bonds) is ​.2022 · 29 Jul · Shift 1 · Q22 · Numerical
  86. Given below are two statements. One is labelled as Assertion A and the other is labelled as Reason R. Assertion A: Amylose is insoluble in water. Reason R: Amylose is a long linear molecule with more than 200 glucose units. In the light of…2022 · 29 Jul · Shift 2 · Q14 · MCQ
  87. C6​H12​O6​ Zymase​ A Δ⟶NaOI​ B + CHI3​ The number of carbon atoms present in the product B is ​.2022 · 29 Jun · Shift 1 · Q19 · Numerical
  88. Sugar moiety in DNA and RNA molecules respectively are2022 · 29 Jun · Shift 1 · Q9 · MCQ
  89. The structure of protein that is unaffected by heating is2022 · 29 Jun · Shift 2 · Q12 · MCQ
  90. The sugar produced after complete hydrolysis of DNA is2022 · 30 Jun · Shift 1 · Q13 · MCQ
  91. A peptide synthesized by the reactions of one molecule each of Glycine, Leucine, Aspartic acid and Histidine will have ​ peptide linkages.2021 · 1 Sep · Shift 2 · Q23 · Numerical
  92. Which among the following pairs of Vitamins is stored in our body relatively for longer duration?2021 · 16 Mar · Shift 1 · Q11 · MCQ
  93. The secondary structure of protein is stabilised by:2021 · 16 Mar · Shift 2 · Q8 · MCQ
  94. Which of the following is correct structure of tyrosine?2021 · 17 Mar · Shift 1 · Q13 · MCQ
  95. C12​H22​O11​+H2​OEnzymeA​GlucoseC6​H12​O6​​+FructoseC6​H12​O6​​GlucoseC6​H12​O6​​EnzymeB​2C2​H5​OH+2CO2​…2021 · 17 Mar · Shift 2 · Q1 · MCQ
  96. Fructose is an example of :2021 · 17 Mar · Shift 2 · Q11 · MCQ
  97. A non-reducing sugar "A" hydrolyses to give two reducing mono saccharides. Sugar A is2021 · 18 Mar · Shift 1 · Q5 · MCQ
  98. Deficiency of vitamin K causes :2021 · 18 Mar · Shift 2 · Q1 · MCQ
  99. Identify the incorrect statement from the following2021 · 20 Jul · Shift 1 · Q9 · MCQ
  100. Which one of the following statements is not true about enzymes?2021 · 20 Jul · Shift 2 · Q9 · MCQ
  101. Thiamine and pyridoxine are also known respectively as :2021 · 22 Jul · Shift 2 · Q11 · MCQ
  102. Out of the following, which type of interaction is reponsible for the stabilisation of α-helix structure of proteins ?2021 · 24 Feb · Shift 1 · Q5 · MCQ
  103. Match List - I and List - II. Includes table2021 · 24 Feb · Shift 2 · Q11 · MCQ
  104. Which of the glycosidic linkage between galactose and glucose is present in lactose?2021 · 25 Feb · Shift 1 · Q8 · MCQ
  105. Which of the following is correct structure of α-anomer of maltose?2021 · 25 Feb · Shift 2 · Q11 · MCQ
  106. The water soluble protein is :2021 · 25 Jul · Shift 1 · Q3 · MCQ
  107. Which one of the following is correct structure for cytosine?2021 · 25 Jul · Shift 2 · Q8 · MCQ
  108. The total number of negative charge in the tetrapeptide, Gly-Glu-Asp-Tyr, at pH 12.5 will be ​. (Integer answer)2021 · 26 Aug · Shift 1 · Q21 · Numerical
  109. Given below are two statements : one is labelled as Assertion (A) and other is labelled as Reason (R). Assertion (A) : Sucrose is a disaccharide and a non-reducing sugar. Reason (R) : Sucrose involves glycosidic linkage between C1 of β…2021 · 26 Aug · Shift 2 · Q3 · MCQ
  110. Which of the following vitamin is helpful in delaying the blood clotting?2021 · 26 Feb · Shift 1 · Q14 · MCQ
  111. Match List - I with List - II. Choose the correct answer from the options given below : Includes table2021 · 26 Feb · Shift 2 · Q15 · MCQ
  112. Out of following isomeric forms of uracil, which one is present in RNA?2021 · 27 Aug · Shift 1 · Q9 · MCQ
  113. Hydrolysis of sucrose gives :2021 · 27 Aug · Shift 2 · Q11 · MCQ
  114. The compound 'A' is a complementary base of ​ in DNA stands. Includes diagram2021 · 27 Jul · Shift 1 · Q10 · MCQ
  115. Which one among the following chemical tests is used to distinguish monosaccharide from disaccharide?2021 · 27 Jul · Shift 1 · Q8 · MCQ
  116. Compound A gives D-Galactose and D-Glucose on hydrolysis. The compound A is :2021 · 27 Jul · Shift 2 · Q7 · MCQ
  117. Which one of the following compounds contains β-C1​−C4​ glycosidic linkage?2021 · 31 Aug · Shift 1 · Q3 · MCQ
  118. Which of the following is not an example of fibrous protein?2021 · 31 Aug · Shift 2 · Q7 · MCQ
  119. Consider the following rections: 'x', 'y' and 'z' in these reactions are respectively. Includes diagram2020 · 2 Sep · Shift 1 · Q15 · MCQ
  120. The correct observation in the following reactions is : Includes diagram2020 · 2 Sep · Shift 2 · Q6 · MCQ
  121. The number of groups present in a tripeptide Asp–Glu–Lys is ​. Includes diagram2020 · 3 Sep · Shift 2 · Q17 · Numerical
  122. What are the functional groups present in the structure of maltose?2020 · 4 Sep · Shift 1 · Q21 · MCQ
  123. Which of the following will react with CHCl3​ + alc. KOH?2020 · 4 Sep · Shift 1 · Q4 · MCQ
  124. The number of chiral centres present in threonine is ​.2020 · 4 Sep · Shift 2 · Q7 · Numerical
  125. Which of the following is not an essential amino acid :2020 · 5 Sep · Shift 1 · Q10 · MCQ
  126. The number of chiral carbon(s) present in peptide, Ile-Arg-Pro, is ​.2020 · 5 Sep · Shift 1 · Q16 · Numerical
  127. The number of chiral carbons present in sucrose is ​.2020 · 5 Sep · Shift 2 · Q3 · Numerical
  128. Which one of the following statements is not true?2020 · 6 Sep · Shift 2 · Q17 · MCQ
  129. Match the following : (i) Riboflavin (a) Beriberi (ii) Thiamine (b) Scurvy (iii) Pyridoxine (c) Cheliosis (iv) Ascorbic acid (d) Convulsions2020 · 7 Jan · Shift 1 · Q12 · MCQ
  130. Which of the following statements is correct ?2020 · 7 Jan · Shift 2 · Q6 · MCQ
  131. Which of the following statement is not true for glucose?2020 · 8 Jan · Shift 1 · Q13 · MCQ
  132. Two monomers in maltose are :2020 · 8 Jan · Shift 2 · Q13 · MCQ
  133. Maltose on treatment with dilute HCI gives :2019 · 8 Apr · Shift 1 · Q3 · MCQ
  134. Fructose and glucose can be distinguished by :2019 · 8 Apr · Shift 2 · Q4 · MCQ
  135. Which of the following statements is not true about sucrose?2019 · 9 Apr · Shift 1 · Q13 · MCQ
  136. The peptide that gives positive ceric ammonium nitrate and carbylamine tests is :2019 · 9 Apr · Shift 2 · Q10 · MCQ
  137. The increasing order of pka of the following amino acids in aqueous solution is : Gly, Asp, Lys, Arg2019 · 9 Jan · Shift 1 · Q22 · MCQ
  138. The correct sequence of amino acids present in the tripeptide given below is : Includes diagram2019 · 9 Jan · Shift 2 · Q5 · MCQ
  139. Amylopectin is compound of :2019 · 10 Apr · Shift 1 · Q21 · MCQ
  140. Number of stereo centers present in linear and cyclic structures of glucose are respectively :2019 · 10 Apr · Shift 2 · Q18 · MCQ
  141. The correct structure of product 'P' in the following reactions is : Includes diagram2019 · 10 Jan · Shift 1 · Q4 · MCQ
  142. Which of the following tests cannot be used for identifying amino acids?2019 · 10 Jan · Shift 2 · Q21 · MCQ
  143. Among the following compounds, which one is found in RNA ?2019 · 11 Jan · Shift 1 · Q14 · MCQ
  144. The correct match between Item I and Item II is : Includes table2019 · 11 Jan · Shift 2 · Q8 · MCQ
  145. Which of the following statements is not true about RNA?2019 · 12 Apr · Shift 1 · Q18 · MCQ
  146. Glucose and Galactose are having identical configuration in all the positions except position2019 · 12 Apr · Shift 1 · Q21 · MCQ
  147. Which of the given statements is INCORRECT about glycogen?2019 · 12 Apr · Shift 2 · Q10 · MCQ
  148. Among the following compounds most basic amino acid is -2019 · 12 Jan · Shift 1 · Q9 · MCQ
  149. The correct statement (s) among I to III with respect to potassium ions that are abundant within the cell fluid is /are I. They activate many enzymes II. They participate in the oxidation of glucose to produce ATP III. Along with sodium…2019 · 12 Jan · Shift 2 · Q3 · MCQ
  150. The correct structure of histidine in a strongly acidic solution (pH = 2) is -2019 · 12 Jan · Shift 2 · Q8 · MCQ
  151. Which of the following is the correct structure of Adenosine?2018 · 15 Apr · Shift 1 · Q8 · MCQ
  152. The dipeptide, Gln-Gly, on treatment with CH3​COCl followed y aqueous work up gives :2018 · 15 Apr · Shift 2 · Q4 · MCQ
  153. Among the following, the incorrect statement is :2018 · 16 Apr · Shift 1 · Q15 · MCQ
  154. The predominant form of histamine present in human blood is (pKa, Histidine = 6.0)2018 · Shift 0 · Q3 · MCQ
  155. Glucose on prolonged heating with HI gives2018 · Shift 0 · Q4 · MCQ
  156. Among the following, the essential amino acid is :2017 · 8 Apr · Shift 1 · Q6 · MCQ
  157. The incorrect statement among the following is :2017 · 9 Apr · Shift 1 · Q10 · MCQ
  158. Which of the following compounds will behave as a reducing sugar in an aqueous KOH solution?2017 · Shift 0 · Q2 · MCQ
  159. Consider the following sequence for aspartic acid : The pI (isoelectric point) of aspartic acid is : Includes diagram2016 · 9 Apr · Shift 1 · Q1 · MCQ
  160. Observation of “Rhumann’s purple” is a confirmatory test for the presence of :2016 · 10 Apr · Shift 1 · Q1 · MCQ
  161. Thiol group is present in :2016 · Shift 0 · Q14 · MCQ
  162. Which of the vitamins given below is water soluble?2015 · Shift 0 · Q12 · MCQ
  163. Which one of the following bases is not present in DNA?2014 · Shift 0 · Q11 · MCQ
  164. Synthesis of each molecule of glucose in photosynthesis involves:2013 · Shift 0 · Q8 · MCQ
  165. Which of the following compounds can be detected by Molisch’s test ?2012 · Shift 0 · Q11 · MCQ
  166. Which one of the following statements is correct ?2012 · Shift 0 · Q9 · MCQ
  167. The presence or absence of hydroxyl group on which carbon atom of sugar differentiates RNA and DNA ?2011 · Shift 0 · Q11 · MCQ
  168. Biuret test is not given by2010 · Shift 0 · Q10 · MCQ
  169. The two functional groups present in a typical carbohydrate are2009 · Shift 0 · Q11 · MCQ
  170. α-D-(+)-glucose and β-D-(+)-glucose are2008 · Shift 0 · Q15 · MCQ
  171. The secondary structure of a protein refers to2007 · Shift 0 · Q15 · MCQ
  172. The term anomers of glucose refers to2006 · Shift 0 · Q17 · MCQ
  173. The pyrimidine bases present in DNA are2006 · Shift 0 · Q18 · MCQ
  174. In both DNA and RNA, heterocyclic base and phosphate ester linkages are at-2005 · Shift 0 · Q23 · MCQ
  175. Which base is present in RNA but not in DNA?2004 · Shift 0 · Q19 · MCQ
  176. Insulin production and its action in human body are responsible for the level of diabetes. This compound belongs to which of the following categories?2004 · Shift 0 · Q20 · MCQ
  177. Identify the correct statements regarding enzymes2004 · Shift 0 · Q30 · MCQ
  178. Complete hydrolysis of cellulose gives2003 · Shift 0 · Q20 · MCQ
  179. The reason for double helical structure of DNA is operation of2003 · Shift 0 · Q27 · MCQ
  180. The functional group, which is found in amino acid is2002 · Shift 0 · Q11 · MCQ
  181. RNA is different from DNA because RNA contains2002 · Shift 0 · Q21 · MCQ