Vitamin D3 formed within the skin has all of these effects on other organ systems except that it A)is essential for absorption of calcium and phosphorus by the digestive system. B)functions as a precursor for the hormone calcitriol in the endocrine system. C)is essential for bone maintenance. D)functions in the activation of plasma cells by the lymphatic system. E)is essential for bone growth.

Question

Quizplus · Accepted Answer

Vitamin D3 does not directly function in the activation of plasma cells by the lymphatic system. This statement may be confused with vitamin D's role in modulating immune system function, but it does not directly activate plasma cells.

Vitamin D3 Formed Within the Skin Has All of These