The three active forms of vitamin A in our bodies (retinol, retinal, and retinoic acid) are collectively referred to as the
A) carotenoids.
B) retinoids.
C) free radicals.
D) antioxidants.

Question

Quizplus · Accepted Answer

The three active forms of vitamin A in our bodies are collectively referred to as retinoids. Choice A, carotenoids, refers to a different group of plant pigments that can be converted to vitamin A in the body. Choices C and D, free radicals and antioxidants, are not related to vitamin A.

The Three Active Forms of Vitamin a in Our Bodies