51 to100

51. This molecule acts as a molecular chaperone to assist the folding of proteins

(b) Carbohydrates

52. Which of these is not a lipid?

(a) Proteins

53. The abundantly distributed enzyme in germinating seeds and adipocytes is-

(a) Lipase

54. Beta-oxidation of fatty acids occurs in-

(b) Peroxisome and Mitochondria

55. An example of _______ is Carnauba wax

(a) Hard wax

56. In fats, the number of OH groups can be expressed as-

(a) Acetyl number

57. Rancidity of lipids of lipid-rich foodstuffs is because of-

(a) Oxidation of fatty acids

58. Which of these is not an example of derived lipids?

(a) Proteins

59. The degree of unsaturation of lipids can be measured as-

(a) Iodine number

60. The specific gravity of lipid is-

(a) 0.8

61. RNA on hydrolysis does not yield which of the following?

(a) Amino acid

62. The compound β-D-2-deoxyribose is present in -

(a) DNA

63. Which of the following bases is not present in DNA?

(a) Uracil

64. Which of the following bases contains two keto groups?

(a) Thymine

65. Which sugar is present in RNA?

(a) β-D-ribose

66. The structure shown is that of a _______

(b) DNA nucleoside

67. Which of the following statements is correct?

(a) Nucleosides do not contain phosphorus

68. Which of the following best describes cytosine?

(a) pyrimidine, present in RNA and DNA

69. The attachment between the base and sugar in a nucleotide is through ______ bond.

(a) glycosidic

70. Which part of the nucleotide is responsible for the formation of bonds in DNA double helix?

(c) Phosphate group

71. Identify the complementary strand of the DNA primary structure ATGCCGATC.

(a) TACGGCTAG

72. Two DNA samples A and B have melting temperatures 305K and 320K, respectively. Identify the correct statement based on this information.

(a) B has more CG pairs than A

73. Identify the purine base of nucleic acids in the following.

(a) Adenine

74. Which of the following are not components of RNA?

(a) Thymine

75. Which of the following statements is true?

(a) The bases in nucleotides are attached to a pentose sugar moiety by a glycosidic linkage

76. What is the composition of nucleoside?

(a) a sugar + a base

77. What is the composition of a nucleotide?

(a) a base + a sugar + phosphate

78. Group of adjacent nucleotides are joined by _______

(a) Phosphodiester bond

79. The sugar molecule in a nucleotide is _______

(a) Pentose

80. Which of the following is true about phosphodiester linkage?

(a) 5’-phosphate group of one nucleotide unit is joined to the 3’-hydroxyl group of the next nucleotide

81. Which of the following compounds is usually not produced by the human body?

(a) Vitamins

82. Which of the following statements is incorrect?

(a) Vitamins contain amino groups

83. Which of the following vitamins are soluble in water?

(a) C

84. The condition of excess intake of vitamins is called _______

(a) hypervitaminoses

85. Which of the following vitamins are stored in human tissues?

(a) K

86. Which of the following water-soluble vitamins are stored in the body?

(a) B12

87. Vitamin B2 is also known as _______

(a) riboflavin

88. Retinol is vitamin _______

(a) A

89. Cyanocobalamin is used for the treatment of a deficiency of which vitamin?

(a) B12

90. Deficiency of ascorbic acid in diet causes _______

(a) scurvy

91. The class of compounds showing vitamin E activity are called _______

(a) tocopherols

92. Which vitamin can be obtained from sunlight?

(a) D

93. Which of the following vitamins helps in blood clotting?

(a) Vitamin K

94. Which is the leading cause of blindness in children worldwide?

(a) Vitamin A deficiency

95. Which of the following vitamin deficiency causes Beriberi?

(a) Vitamin B1

96. Who is most likely to develop scurvy – A vitamin C deficiency?

(b) A malnourished child

97. Which of the following vitamins functions as both a hormone and a visual pigment?

(a) Retinal

98. Which of the following nutrient deficiencies causes megaloblastic anaemia?

(a) Folic acid

99. Which of the following is a fat-soluble vitamin?

(a) Vitamin K

100. Which of the following diseases is caused by the deficiency of Niacin?

(a) Pellagra