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75. The common component in crustacean exoskeleton and fungal cell wall is: (A) Lignin (B) Cellulose (C) Chitin (D) Peptidoglycan What Is the Common Structural Component of Crustacean Exoskeleton and […]

74. Deficiency of the enzyme phenylalanine hydroxylase causes Phenylketonuria. Phenylalanine hydroxylase converts phenylalanine to: (A) Tryptophan (B) Alanine (C) Tyrosine (D) Threonine Phenylalanine Hydroxylase Converts Phenylalanine into Which Amino Acid? […]

73. The following reaction is an example of . (A) enolization (B) racemization (C) isomerization (D) epimerization Is the Conversion of Dihydroxyacetone Phosphate to Glyceraldehyde-3-Phosphate an Isomerization Reaction? Correct Answer […]

72. Consider an ATP synthase having twelve C-rings to sense proton motive force. The average number of protons required per ATP synthesis is ________. How to Calculate the Number of […]

71. Which one of the following bonds is formed at the branch point in glycogen? (A) α-1,4 glycosidic bond (B) α-1,6 glycosidic bond (C) β-1,4 glycosidic bond (D) β-1,6 glycosidic […]

70. The pH of gastric juice in the stomach is 2.0. However the pH inside the cells that line the stomach is 7.0. For transport of protons from inside the […]

69. An enzyme preparation containing 10 mg/ml protein shows a specific activity of 50 U/mg. The initial velocity of reaction in a standard 1 ml reaction mixture containing 10 µl […]

68. Which one of the following options shows the correct pairing of the enzyme with its corresponding application? P.Papain                   i. Gluten complex […]

67. An enzyme shows highest activity in the pH range 2.0 – 3.0. At pH 4.0 and pH 7.0, the enzyme exhibits 50% and 1%, respectively, of its highest activity. […]

66. Cephalin, a biological surfactant, is (A) choline phosphoglyceride (B) ethanolamine phosphoglyceride (C) glycosphingolipid (D) sphingolipid What is Cephalin? Complete Explanation of Biological Surfactant and Phospholipids Correct Answer (B) Ethanolamine […]