Which of the following is the name of the vitamin A compound that is active in the visual response?

Question

Quizplus · Accepted Answer

Retinal is the name of the vitamin A compound that is active in the visual response. The retina in the eye contains light-sensitive cells called rods and cones, which use retinal to detect light and transmit signals to the brain, allowing us to see. Opsin is a protein that combines with retinal to form visual pigments, but it is not itself the active form of vitamin A in the visual system. Keratin is a protein found in hair, skin, and nails, and carotene is a precursor to vitamin A found in certain fruits and vegetables.

Which of the Following Is the Name of the Vitamin