Which of the following vitamins is synthesized by intestinal bacteria?
A)A
B)C
C)D
D)E
E)K

Question

Quizplus · Accepted Answer

Vitamin K is the only vitamin synthesized by intestinal bacteria. The other vitamins listed (A, C, D, and E) are not synthesized by intestinal bacteria. Vitamin A is derived from carotenoids in plants or animal tissues, vitamin C is obtained through diet, vitamin D is synthesized in the skin when exposed to UV light or obtained through diet, and vitamin E is obtained through diet.

Which of the Following Vitamins Is Synthesized by Intestinal Bacteria