CSIR Life science - Cell Biology Model Questions Part - 7

61. Which of the following is an example of a hydrophobic material?
(a) Paper (b) Sugar
(c) Pasta (d) Wax

62. We can be sure that a mole of table sugar and a mole of vitamin C are equal in their
(a) weight in daltons
(b) number of molecules
(c) volume
(d) number of atoms

63. Among the following which is longest cell-
(a) Hemp (b) Ramie
(c) Jute (d) Nerve fibre

64. The middle lamella of plant cells is made up of calcium magnesium pectate. Pectic Acid is polymer of-
(a) a-1,4 D-Glucose (b) b-1,6-D Glucose
(c) a-1,4 D-Galactouronic acid (d) b-1,4 D-Galactouronic acid

65. Acid precipitation has lowered the pH of a particular lake to 4.0. What is the hydrogen ion concentration of the lake
(a) 10–4 M (b) 4.0 M
(c) 10–10 M (d) 104 M

66. The percentage amount of Integral protein of plasma membrane is-
(a) 40 % (b) 50 %
(c) 60 % (d) 70 %

67. Oligosaccharide are usely attached to extrinsic phase of plasma membrane by-
(a) Proteins (b) Lipids
(c) Both a & b (d) Not specific

68. Maximum number of enzymes in a eukaryotic cell is present inside
(a) Cytosol (b) Mitocondria
(c) Lysosome (d) ER

69. Which of the following term includes all others in the list?
(a) Monosaccharide (b) Carbohydrate
(c) Disaccharide (d) Starch

70. The structural level of a protein least affected by a disruption in hydrogen bond is the
(a) secondary level (b) tertiary level
(c) primary level (d) quaternary level

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