Vitamins - Mock Test 22

Question 211

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

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Question 212

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

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Question 213

Anti-oxidant activity is present in?

A) β-Carotene B) Retinol C) Retinoic acid D) All of these

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Question 214

Retinol isomerase is present in?

A) Retina B) Liver C) Both A and B D) None of these

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Question 215

Conversion of all-trans-retinal into alltrans-retinol requires?

A) NAD B) NADH C) NADP D) NADPH

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Question 216

Rhodopsin contains opsin and?

A) 11-cis-retinal B) 11-trans-retinal C) All-cis-retinal D) All trans-retinal

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Question 217

Vitamin A is stored in the body in?

A) Liver B) Adipose tissue C) Reticuloendothelial cells D) All of these

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Question 218

Vitamin A absorbed in intestine is released into?

A) Portal circulation B) Lacteals C) Both A and B D) None of these

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Question 219

Vitamin A absorbed in intestine is released into?

A) Portal circulation B) Lacteals C) Both A and B D) None of these

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Question 220

Retinal is converted into retinoic acid in the presence of?

A) Retinal oxidase B) Retinal carboxylase C) Retinene reductase D) Spontaneously

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