Related InterviewSolutions

• β-Carotene, precursor of vitamin A, is oxidatively cleaved by (A) β-Carotene dioxygenase (B) Oxygenase (C) Hydroxylase (D) Transferase
• 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+
• The performed Vitamin A is supplied by foods such as (A) Butter(B) Eggs (C) Fish liver oil(D) All of these
• Retinal is reduced to retinol by retinene reductase in presence of the coenzyme (A) NAD+ (B) NADP+ (C) NADH + H+ (D) NADPH + H+
• The non-protein part of rhodopsin is (A) Retinal (B) Retinol (C) Carotene (D) Repsin
• Retinal exists as an ester with higher fatty acids in the (A) Liver(B) Kidney (C) Lung (D) All of these
• Provitamins A include (A) Retinal (B) Retionic acid (C) Carotenes (D) All of these
• Vitamin A or retinal is a(A) Steroid (B) Polyisoprenoid compound containing a cyclohexenyl ring (C) Benzoquinone derivative (D) 6-Hydroxychromane
• In biotin-containing enzymes, the biotin is bound to the enzyme by (A) An amide linkage to carboxyl group of glutamine (B) A covalent bond with CO2 (C) An amide linkage to an amino group of lysine (D) An amide linkage to α-carboxyl group of protein