Question

which of the following is the most active form of vitamin a in the body?
multiple choice
retinoic acid
beta - carotene
retinal
retinol

Explanation:

Retinoic acid is the most active form of vitamin A in the body. It plays crucial roles in gene expression, cell growth, and differentiation. Beta - carotene is a provitamin A (a precursor of vitamin A). Retinal is involved in vision (as part of rhodopsin) but is not the most active form in terms of overall body functions like gene regulation. Retinol is a form of vitamin A but is less active than retinoic acid in terms of certain regulatory functions.

Answer:

Retinoic acid