Question

Vitamin D is different from all other vitamins because it:

a. can donate electrons or hydrogen ions to other substances.
b. cannot be converted to an active hormone in the body.
c. cannot be consumed through a diet.
d. can be synthesized by our body through exposure to sunlight.

Answer 1

Vitamin D can be synthesized by our body through exposure to sunlight, which sets it apart from other vitamins that are typically obtained through diet or supplements. Correct option is d)

Step-by-step explanation:

Vitamin D is different from all other vitamins because it can be synthesized by our body through exposure to sunlight. When our skin is exposed to ultraviolet radiation from sunlight, it converts a form of cholesterol in the skin to cholecalciferol, a precursor of vitamin D. This cholecalciferol is then converted to the active form of vitamin D in the liver and kidneys.

This ability to synthesize vitamin D through sunlight exposure is unique to vitamin D and sets it apart from other vitamins, which generally need to be obtained through diet or supplements.