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PROTEINS AND PROTEIN METABOLISM- Part 6
See all quizzes of PROTEINS AND PROTEIN METABOLISM- Part 6 here:
1The basic amino acids are
(A) Lysine (B) Bile acids
(C) Glycine (D) Alanine
2. The daily caloric requirement for the
normal adult female is about
(A) 1500 (B) 2100
(C) 2500 (D) 2900
3. In the total proteins, the percentage of
albumin is about
(A) 20–40 (B) 30–45
(C) 50–70 (D) 80–90
4. In the total proteins percentage of α1
globulin is about
(A) 0.2–1.2% (B) 1.2–2.0%
(C) 2.4–4.4% (D) 5.0–10.0%
5. In the total proteins the percentage of
γ globulin is about
(A) 2.4–4.4% (B) 10.0–21.0%
(C) 6.1–10.1% (D) 1.2–2.0%
6. Most frequently the normal albumin
globulin ratioratio (A : G) is
(A) 1.0 : 0.8 (B) 1.5 : 1.0
(C) 2.0 : 1.0 (D) 2.4 : 1.0
7. In Thymol turbidity test the protein
involved is mainly
(A) Albumin (B) α1-Globulin
(C) α2-Globulin (D) β Globulin
8. In quaternary structure, subunits are
linked by
(A) Peptide bonds (B) Disulphide bonds
(C) Covalent bonds (D) Non-covalent bonds
9. Molecular weight of human albumin is
about
(A) 156,000 (B) 90,000
(C) 69,000 (D) 54,000
10. At isoelectric pH, an amino acid exists as
(A) Anion (B) Cation
(C) Zwitterion (D) None of these
11. A disulphide bond can be formed
between
(A) Two methionine residues
(B) Two cysteine residues
(C) A methionine and a cysteine residue
(D) All of these
12 A coagulated protein is
(A) Insoluble
(B) Biologically non-functional
(C) Unfolded
(D) All of the above
13. At a pH below the isoelectric point, an
amino acid exists as
(A) Cation
(B) Anion
(C) Zwitterion
(D) Undissociated molecule
14. An amino acid having a hydrophilic side
chain is
(A) Alanine (B) Proline
(C) Methionine (D) Serine
15. An amino acid that does not take part in
α helix formation is
(A) Histidine (B) Tyrosine
(C) Proline (D) Tryptophan
16. A protein rich in cysteine is
(A) Collagen (B) Keratin
(C) Haemoglobin (D) Gelatin
17. Primary structure of proteins can be
determined by the use of
(A) Electrophoresis (B) Chromatography
(C) Ninhydrin (D) Sanger’s reagent
18. Electrostatic bonds can be formed between
the side chains of
(A) Alanine and leucine
(B) Leucine and valine
(C) Asparate and glutamate
(D) Lysine and aspartate
19. Sanger’s reagent contains
(A) Phenylisothiocyanate
(B) Dansyl chloride
(C) 1-Fluoro-2, 4-dinitrobenzene
(D) Ninhydrin
20. The most abundant protein in mammals is
(A) Albumin (B) Haemoglobin
(C) Collagen (D) Elastin
21. Folding of newly synthesized proteins is
accelerated by
(A) Protein disulphide isomerase
(B) Prolyl cis-trans isomerase
(C) Chaperonins
(D) All of these
22. Primary structure of a protein is formed by
(A) Hydrogen bonds (B) Peptide bonds
(C) Disulphide bonds (D) All of these
23. α-Helix is formed by
(A) Hydrogen bonds
(B) Hydrophobic bonds
(C) Electrostatic bonds
(D) Disulphide bonds
24. Glutelins are present in
(A) Milk (B) Eggs
(C) Meat (D) Cereals
25. Aromatic amino acids can be detected by
(A) Sakaguchi reaction
(B) Millon-Nasse reaction
(C) Hopkins-Cole reaction
(D) Xanthoproteic reaction
26. Two amino groups are present in
(A) Leucine (B) Glutamate
(C) Lysine (D) Threonine
27. During denaturation of proteins, all of the
following are disrupted except
(A) Primary structure (B) Secondary structure
(C) Tertiary structure (D) Quaternary structure
28. All the following are branched chain
amino acids except
(A) Isoleucine (B) Alanine
(C) Leucine (D) Valine
29. An –OH group is present in the side chain of
(A) Serine (B) Arginine
(C) Lysine (D) Proline
30. Edman’s reagent contains
(A) Phenylisothiocyanate
(B) 1-Fluoro-2, 4-dinitrobenzene
(C) Dansyl Chloride
(D) tBOC azide
