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BCNS Vitamins A Exam Questions & Answers 2024/2025 $7.99   Add to cart

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BCNS Vitamins A Exam Questions & Answers 2024/2025

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BCNS Vitamins A Exam Questions & Answers 2024/2025 Foods rich in preformed vitamin A (retinol) - ANSWERSanimal foods - meat milk eggs Beef liver Cod liver oil Egg Cheddar cheese Butter Whole milk Vitamin A is mainly in what form? - ANSWERSretinol combined with fatty acids. (usually wi...

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  • September 27, 2024
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BCNS Vitamins A Exam Questions &
Answers 2024/2025

Foods rich in preformed vitamin A (retinol) - ANSWERSanimal foods - meat

milk

eggs

Beef liver

Cod liver oil Egg

Cheddar cheese Butter

Whole milk



Vitamin A is mainly in what form? - ANSWERSretinol combined with fatty acids. (usually with palmitic
acid, as retinyl palmitate)



In the body, RETINOL can be converted to what? - ANSWERSRetinal

Retinoic acid



Retinal plays what central role in the function of the what? - ANSWERSRetina



Retinoic acid helps regulate what? - ANSWERSgene expression

cell development



How is Vitamin A transported: - ANSWERSBy retinol binding protein



Where is Vitamin A synthesized in the body - ANSWERSliver



What are the Carotenoids and where are Carotenoids found? - ANSWERScompounds found in plants

, What are Carotenoids converted to in the body? - ANSWERSVitamin A



What is the most common carotene in foods? - ANSWERSBeta-carotene



How can beta-carotene molecules be absorbed - ANSWERSintact or split into molecules of vitamin A by
the intestinal cells



What are the functions of Vitamin A? - ANSWERSVision

Skin and mucus membrane health

Immune system

Hormone synthesis

Reproduction

Growth and development

Red Blood Cells

Nervous system

Skeleton



How does Vitamin A function in the skin and mucus membrane? - ANSWERSVitamin A increases
resistance to infection by maintaining the integrity of the skin and mucous membrane barriers against
bacteria, viruses, and parasites.



In addition, vitamin A enhances antibody production by white blood cells and increases the number and
activity of T cells



How does Vitamin A function during childhood? - ANSWERSvitamin A supports the growth and
development of T cells in the thymus gland.



How does Vitamin A function in hormone synthesis? - ANSWERSVitamin A is required for steroid
hormone synthesis, including the production of corticosteroids in the adrenal gland and androgens and
estrogens in the testes and ovaries.

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