The MOST critical role that vitamin A plays in the human body is
A) maintaining a healthy reproductive system.
B) acting as an antioxidant and scavenging free radicals.
C) maintaining a healthy immune system.
D) maintaining healthy vision.

Question

Quizplus · Accepted Answer

Vitamin A is essential for maintaining healthy vision, particularly in low-light conditions. It plays a critical role in the production of rhodopsin, a pigment found in the retina that helps detect light. Vitamin A deficiency can lead to night blindness and even permanent blindness if left untreated. While vitamin A also plays important roles in maintaining a healthy immune system and acting as an antioxidant, its role in vision is considered the most critical.

The MOST Critical Role That Vitamin a Plays in the Human