(A) 5–10
(B) 15–60
(C) 100–150
(D) 0–5
Author:
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
Retinol and retinal are interconverted requiring dehydrogenase or reductase in the presence of?
(A) NAD or NADP
(B) NADH + H+
(C) NADPH
(D) FAD
Preformed Vitamin A is supplied by?
(A) Milk, fat and liver
(B) All yellow vegetables
(C) All yellow fruits
(D) Leafy green vegetables
Retinal is reduced to retinol in intestinal mucosa by a specific retinaldehyde reductase utilising?
(A) NADPH + H+
(B) FAD
(C) NAD
(D) NADH + H+