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VITAMINS- Part 8
See all quizzes of VITAMINS- Part 8 here:
1 Prothrombin time is prolonged in
(A) Vitamin K deficiency
(B) Liver damage
(C) Both (A) and (B)
(D) None of these
2. A synthetic form of vitamin K is
(A) Menadione (B) Farnoquinone
(C) Phylloquinone (D) None of these
3. Retinal is reduced to retinol by retinene
reductase in presence of the coenzyme
(A) NAD+ (B) NADP+
(C) NADH + H+ (D) NADPH + H+
4. Retinal exists as an ester with higher fatty
acids in the
(A) Liver (B) Kidney
(C) Lung (D) All of these
5. Retinol is transported to the blood as
retinol attached to
(A) α1-globulin (B) α2-globulin
(C) β-globulin (D) γ-globulin
6. Carotenes are transported with the
(A) Minerals (B) Proteins
(C) Lipids (D) Lipoproteins
7. The drugs that form complexes with
pyridoxal are
(A) Isoniazid (B) Penicillamine
(C) Rifampicin (D) Both (A) and (B)
8. In the blood the vitamin esters are
attached to
(A) α1-lipoproteins (B) α2-lipoproteins
(C) β-lipoproteins (D) γ-lipoproteins
9. The percentage of Vitamin A in the form
of esters is stored in the liver:
(A) 80 (B) 85
(C) 90 (D) 95
10. The performed Vitamin A is supplied by
foods such as
(A) Butter (B) Eggs
(C) Fish liver oil (D) All of these
11. The non-protein part of rhodopsin is
(A) Retinal (B) Retinol
(C) Carotene (D) Repsin
12. Lumirhodopsin is stable only at a
temperature below
(A) –35°C (B) –40°C
(C) –45°C (D) –50°C
13 The normal concentration of vitamin A in
blood in I.V/dl:
(A) 20–55 (B) 24–60
(C) 30–65 (D) 35–70
14. Continued intake of excessive amounts of
vitamin A especially in children produces
(A) Irritability (B) Anorexia
(C) Headache (D) All of these
15. Vitamin D2 is also said to be
(A) Activated ergosterol
(B) Fergocalciferol
(C) Viosterol
(D) All of these
16. The poor sources of vitamin D:
(A) Eggs (B) Butter
(C) Milk (D) Liver
17. The activity of tocopherols is destroyed
by
(A) Oxidation (B) Reduction
(C) Conjugation (D) All of these
18 Some tocopherols are
(A) Terpenoid in structure
(B) Dional in structure
(C) Isoprenoid in structure
(D) Farnesyl in structure
19. The methyl groups in the aromatic nucleus
of a tocopherols are
(A) 2 (B) 3
(C) 4 (D) 5
20. Vitamin E stored in
(A) Mitochondria (B) Microsomes
(C) Both (A) and (B) (D) None of these
21. Vitamin E protects the polyunsaturated
fatty acids from oxidation by molecular
oxygen in the formation of
(A) Superoxide (B) Peroxide
(C) Trioxide (D) All of these
22. The tocopherols prevent the oxidation of
(A) Vitamin A (B) Vitamin D
(C) Vitamin K (D) Vitamin C
23. Vitamin E protects enzymes from destruction
in
(A) Muscles (B) Nerves
(C) Gonads (D) All of these
24. Vitamin K regulates the synthesis of blood
clotting factors:
(A) VII (B) IX
(C) X (D) All of these
25. Ascorbic acid can reduce
(A) 2, 4-dinitro benzene
(B) 2, 6-Dichlorophenol Indophenol
(C) 2, 4-dibromobenzene
(D) 2, 6-dibromo benzene
26. Sterilized milk is devoid of
(A) Vitamin A (B) Vitamin B1
(C) Vitamin C (D) Vitamin D
27. The symptoms of scurvy are
(A) Poor healing of wounds
(B) Loosening of teeth
(C) Anaemia
(D) All of these
28. Kwashiorkor results from
(A) Vitamin A deficiency
(B) Vitamin D deficiency
(C) Deficiency of minerals in diet
(D) Protein and caloric deficiency in diet
29. Which among the following fatty acids is
an essential fatty acid for man?
(A) Palmitic acid (B) Oleic acid
(C) Linoleic acid (D) None of these
30. The number of nutritionally essential
amino acids for man is
(A) 6 (B) 8
(C) 10 (D) 12
