Vitamins and Minerals Overview

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Which type of vitamins are required in very small amounts and involved in fundamental functions in the body?

Provitamin-A carotenoids

Vitamin A

Fat soluble vitamins

Water soluble vitamins (correct)

What is the storage form of Vitamin A?

Retinyl palmitate (correct)

Vitamin A molecules

Aldehyde form

Retinoic acid

How is Vitamin A transported in the circulation for storage in the liver?

Converted to retinyl palmitate

Bound to retinoic acid

Released as retinol bound to RBP (correct)

Incorporated into chylomicrons

Which gene level mediator binds to target genes when activated by all-trans-retinoic acid (RA)?

Retinoid receptors Signup and view all the answers

What enzyme is responsible for bio-converting provitamin-A carotenoids to Vitamin A molecules in the small intestine?

Carotene cleavage enzyme Signup and view all the answers

What is the most specific and characteristic early symptom of Vitamin A deficiency?

Night blindness Signup and view all the answers

Which protein is involved in delivering retinol (Vitamin A) as well as thyroid hormone to tissues?

RBP (Retinol binding protein) Signup and view all the answers

Which physiological activity is regulated by vitamin A's active form, retinoic acid, among the following?

Cell division Signup and view all the answers

What is a common symptom associated with Vitamin A deficiency that affects vision?

Delayed adaptation to the dark Signup and view all the answers

Which eye structure is specifically affected in Vitamin A deficiency, leading to blindness?

Cornea Signup and view all the answers

Vitamins and Minerals Overview

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Questions and Answers

Which type of vitamins are required in very small amounts and involved in fundamental functions in the body?

What is the storage form of Vitamin A?

How is Vitamin A transported in the circulation for storage in the liver?

Which gene level mediator binds to target genes when activated by all-trans-retinoic acid (RA)?

What enzyme is responsible for bio-converting provitamin-A carotenoids to Vitamin A molecules in the small intestine?

What is the most specific and characteristic early symptom of Vitamin A deficiency?

Which protein is involved in delivering retinol (Vitamin A) as well as thyroid hormone to tissues?

Which physiological activity is regulated by vitamin A's active form, retinoic acid, among the following?

What is a common symptom associated with Vitamin A deficiency that affects vision?

Which eye structure is specifically affected in Vitamin A deficiency, leading to blindness?

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