Many of the Symptoms of Vitamin a Deficiency, Such as Blindness

question 32

Multiple Choice

Many of the symptoms of vitamin A deficiency, such as blindness and an increase in respiratory infections, are related to the role of vitamin A in:

• A) blood clotting.
• B) synthesis of visual pigments.
• C) controlling osteoclast and osteoblast activity.
• D) synthesis of hormones.
• E) maintaining the epithelial cells.

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