(A) Xerophthalmia
(B) Keratomalacia
(C) Prolonged dark adaptation time
(D) Follicular hyperkeratosis
Author:
Vitamin B6 includes?
(A) Pyridoxal
(B) Pyridoxamine
(C) Pyridoxine
(D) All of these
Daily requirement of vitamin A in an adult man can be expressed as?
(A) 400 IU
(B) 1,000 IU
(C) 5,000 IU
(D) 10,000 IU
One international Unit of vitamin A is the activity present in?
(A) 0.3 μg of β-Carotene
(B) 0.3 μg of retinol
(C) 0.6 μg of retinoic acid
(D) All of these
Anti-oxidant activity is present in?
(A) β-Carotene
(B) Retinol
(C) Retinoic acid
(D) All of these
Retinol isomerase is present in?
(A) Retina
(B) Liver
(C) Both (A) and (B)
(D) None of these
Conversion of all-trans-retinal into alltrans- retinol requires?
(A) NAD
(B) NADH
(C) NADP
(D) NADPH
When light falls on rod cells?
(A) All-cis-retinal is converted into all-trans-retinal
(B) 11-cis-retinal is converted into 11-trans-retinal
(C) 11-trans-retinal is converted into all-transretinal
(D) 11-cis-retinal is converted into all-trans-retinal