E-PolyLearning

56. A mammalian cell contains 18% of
a. water
b. proteins
c. ions
d. fats
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Answer: (b).proteins

57. Tertiary conformation of proteins is maintained by 3 types of bonds namely ionic, hydrogen and
a. sulphide
b. disulphide
c. covalent
d. peptide
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Answer: (b).disulphide

58. A compound which is responsible for structure of membranes of cell and its organelles is a
a. lipid
b. proteins
c. fats, glucose, starch
d. waxes
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Answer: (a).lipid

59. Clycylalanine is a
a. dipeptide
b. monopepttide
c. polypeptide
d. tertrapeptide
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Answer: (a).dipeptide

60. Lipids which are composed of glycerol and fatty acids are called
a. Acylglycerols
b. waxes
c. phospholipids
d. glycolipids
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Answer: (a).Acylglycerols