(A) To act as coenzyme for a few enzymes
(B) To play an integral role in protein synthesis
(C) To prevent hemorrhages
(D) To maintain the integrity of epithelial tissue
Tag: Biochemistry Multiple Choice Questions
Deficiency of Vitamin A causes?
(A) Xeropthalmia
(B) Hypoprothrombinemia
(C) Megaloblastic anemia
(D) Pernicious anemia
One manifestation of vitamin A deficiency is?
(A) Painful joints
(B) Night blindness
(C) Loss of hair
(D) Thickening of long bones
The normal serum concentration of vitamin A in mg/100 ml is?
(A) 5–10
(B) 15–60
(C) 100–150
(D) 0–5
Retinol is transported in blood bound to?
(A) Aporetinol binding protein
(B) α2-Globulin
(C) β-Globulin
(D) Albumin
Lumirhodopsin is stable only at temperature below?
(A) –10°C
(B) –20°C
(C) –40°C
(D) –50°C
The international unit of vitamin A is equivalent to the activity caused by?
(A) 0.3 μg of Vitamin A alcohol
(B) 0.344 μg of Vitamin A alcohol
(C) 0.6 μg of Vitamin A alcohol
(D) 1.0 μg of Vitamin A alcohol
Fat soluble vitamins are?
(A) Soluble in alcohol
(B) one or more Propene units
(C) Stored in liver
(D) All these