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

question 81

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)the synthesis of visual pigment.
• C)the maintenance of epithelial cells.
• D)the synthesis of some hormones.
• E)the synthesis of nephrons.