Which of the following properties do vitamins D and K share?

Question

a.) Both are synthesized in the body

b.)Both are required for normal vision

c.) Neither has an effect on bone metabolism

d.)Neither has an effect on erythrocyte function

Answer 1

Answer: (a) & (d)

Vitamin D3 is synthesized in the body (from 7-dehydrocholesterol  in skin on UV light exposure) & Vitamin K2 (mevaquinone) is synthesised by gut bacterial flora.

Neither Vitamin D nor K have an effect on erythrocyte function but do affect coagulation.