Question:
The Vitamin that play a crucial role in maintenance and repair of epithelial tissue by promoting cell differentiation and proliferation is:
AVitamin C
BVitamin A
CVitamin D
DVitamin K
Answer:
B. Vitamin A
Explanation:
- The important role of vitamin A in immune system function is well established.
- Vitamin A deficiency can affect host immunity through direct actions on immune cell function and through indirect effects on epithelial cell differentiation and, consequently, host barrier defenses.