What are the major harms caused by vitamin a deficiency, Biology

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Q. What are the major harms caused by vitamin A deficiency? How does this vitamin act in the physiology of vision?

Deficiency of vitamin A (retinol) may corneal dryness (xerophthalmia), cause night blindness and predisposition to skin injuries.

In the physiology of vision vitamin A participates in the formation of rhodopsin a pigment responsible for the visual perception in less illuminated places. Nutrition Vitamins - Image Diversity: vitamin A deficiency.


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