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.

Question

Quizplus · Accepted Answer

Vitamin A plays a crucial role in maintaining the health of epithelial cells, which are the cells that make up the skin and mucous membranes. A deficiency in vitamin A can lead to a breakdown of these cells, making them more susceptible to infections, including respiratory infections. Additionally, vitamin A is important for maintaining the health of the eyes, where it plays a role in the synthesis of visual pigments. It is not directly involved in blood clotting, controlling osteoclast and osteoblast activity, or synthesis of hormones.

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