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PROTEINS AND PROTEIN METABOLISM- Part 18
See all quizzes of PROTEINS AND PROTEIN METABOLISM- Part 18 here:
1In glutathione (a tripeptide) is present
apart from Glutamic acid and cysteine:
(A) Serine (B) Glycine
(C) Leucine (D) Phenyl alanine
2. 2-Amino 3-OH propanoic acid is
(A) Glycine (B) Alanine
(C) Valine (D) Serine
3. All amino acids have one asymmetric
carbon atom, except
(A) Arginine (B) Aspargine
(C) Histidine (D) Glycine
4. Number of amino acids present in the
plant, animal and microbial proteins:
(A) 20 (B) 80
(C) 150 (D) 200
5. Immunoglobulins are characterized by their
(A) Heavy chains
(B) Molecular weight
(C) Light chains
(D) Electrophoretic behaviour
6. The bond in proteins that is not hydrolysed
under usual conditions of denaturation:
(A) Hydrophobic bond (B) Hydrogen bond
(C) Disulphide bond (D) Peptide bonds
7. If the amino group and a carboxylic group
of the amino acid are attached to same
carbon atom, the amino acid is called
(A) Alpha (B) Beta
(C) Gamma (D) Delta
8. Zymogen is
(A) An intracellular enzyme
(B) Serum enzyme
(C) A complete extracellular enzyme
(D) An inactivated enzyme
9. SGOT level in a adult is
(A) 5–40 units/dl (B) 1–4 units/dl
(C) 5–15 units/dl (D) 50–100 units/dl
10. Activity of ceruloplasmin shown in vitro:
(A) Reductase (B) Hydrolase
(C) Ligase (D) Oxidase
11. Increased serum alanine during fasting is
due to
(A) Breakdown of muscle proteins
(B) Decreased utilization of non essential amino
acids
(C) Leakage of aminoacids to plasma
(D) Impaired renal function
12. The following 4 amino acids are required
for completion of urea cycle except
(A) Aspartic acid (B) Arginine
(C) Ornithine (D) Glycine
13. Number of amino acids present in the
dietary proteins:
(A) 22 (B) 23
(C) 20 (D) 19
14. Urea synthesis takes place in
(A) Blood (B) Liver
(C) Kidney (D) Heart
15. All followings are ketogenic aminoacids
except
(A) Leucine (B) Isoleucine
(C) Phenyl alanine (D) Glycine
16. The amino acid containing an indole ring:
(A) Tryptophan (B) Arginine
(C) Threonine (D) Phenylalanine
17. Histidine is converted to histamine
through the process of
(A) Transamination
(B) Decarboxylation
(C) Oxidative deamination
(D) Urea cycle
18. Physiologically active configuration of
amino acids:
(A) L
(B) D
(C) For some amino acids it is either of two
(D) Neither L nor D
19. Cystine is synthesized from
(A) Cysteine (B) Methionine
(C) Arginine (D) Leucine
10. The major constituent of the proteins of
hair and keratin of skin:
(A) Arginine (B) Cysteine
(C) Glycine (D) Arginine
11. NH3 is removed from brain mainly by
(A) Creatinine formation
(B) Uric acid production
(C) Urea formation
(D) Glutamine formation
12. Mechanism by which NH3 is removed from
the kidneys is
(A) Urea formation
(B) Uric acid formation
(C) Creatinine formation
(D) None of these
13. Low density plasma proteins are rich in
(A) Chylomicrons (B) Cholesterol
(C) Triglycerides (D) Phospholipids
24. Transcortins are
(A) Mucoproteins (B) Glycoproteins
(C) Metalloproteins (D) Lipoproteins
25. Proteins that carries Iron into different
tissues is
(A) Ceruloplasmin (B) Trans cortin
(C) Mucoproteins (D) Glycoproteins
26. Naturally occurring amino acids have
(A) L-Configuration (B) D-Configuration
(C) DL-Configuration (D) None of these
27. Abnormal chain of aminoacids in sickle
cell anemia is
(A) β-chain (B) β-chain
(C) γ-chain (D) r-chain
28. A dietary deficiency of tryptophan and
nicotinate leads to
(A) Beri Beri (B) Xerophthalmia
(C) Anemia (D) Pellegra
29. Which one of the following is an essential
amino acid?
(A) Arginine (B) Tyrosine
(C) Phenylalanine (D) Proline
30. One of the following amino acid is solely
ketogenic:
(A) Lysine (B) Alanine
(C) Valine (D) Glutamate
