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Krebs' cycle…………………………………………………………………………………………………………..48
c. Histone d. Collagen ANS: c
34- Amino acids considered non essential for human are:
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a. Those incorporated into protein. b. Those synthesized in the body. c. Those cannot decarboxylated. d. Those cannot be transaminated. ANS: b
35- Sulfur containing amino acid is:
a. Keratan sulfate. b. Chondroitin sulfate. c. Cysteine. d. Homoserine. e. Glutathione. ANS: c
36- Glutathione is tripeptide formed of:
a. Glutamate- phenylalanine- aspartate b. Methionine - alanine - valine. c. Homocysteine - arginine threonine. d. Cystine - leucine Aspartate. e. Glutamate - cysteine - Glycine. ANS: e
37- The terms "primary", "secondary" and "tertiary" structure in protein chemistry refer to:
a. "a-Helix", "b-helix" and "y-helix" respectively. b. "Amino acids sequence”, "hydrophobic, electrostatic, disulfide, hydrogen bonds" and "a-helix" respectively. c. "Electrostatic interactions”, “hydrogen bonds" and “disulfide bonds" respectively. d. "Amino acids sequence", "a-helix", and "hydrophobic, electrostatic, disulfide, hydrogen bonds" respectively. ANS: d
