Vitamin K serves as a(n)________ to various proteins involved in the coagulation of blood and in bone metabolism.
A)inhibitor
B)coenzyme
C)antagonist
D)carrier

Question

Quizplus · Accepted Answer

Vitamin K acts as a coenzyme to activate various proteins involved in blood clotting and bone metabolism. It helps in the conversion of prothrombin to thrombin, which is necessary for the formation of blood clots. Vitamin K also aids in the activation of osteocalcin, which is essential for bone formation. Therefore, option B, coenzyme, is the correct choice. Option A, inhibitor, is incorrect because Vitamin K helps activate proteins. Option C, antagonist, is incorrect because Vitamin K does not oppose the action of other molecules. Option D, carrier, is incorrect because although Vitamin K is transported by carrier proteins in the body, it is not primarily known to carry other substances.

Vitamin K Serves as A(n)________ to Various Proteins Involved in the Coagulation