Which properties do vitamins D and K share?

Question

Which properties do vitamins D and K share? ​

Quizplus · Accepted Answer

Both vitamins D and K can be synthesized in the body, although vitamin D can also be obtained through diet and sunlight exposure. Vitamin D is produced in the skin when exposed to UV radiation, while vitamin K is synthesized by bacteria in the intestinal tract. However, some individuals may still require supplementation to meet their daily needs.

Option B is incorrect because only vitamin A is required for normal vision, not vitamins D and K.

Option C is incorrect because both vitamins D and K play important roles in bone metabolism. Vitamin D helps the body absorb calcium, which is essential for bone health, while vitamin K plays a role in activating proteins involved in bone growth and mineralization.

Option D is incorrect because vitamin K is necessary for the proper functioning of blood clotting factors, which are produced by liver cells known as hepatocytes. In fact, the name "vitamin K" comes from the German word "koagulation," which means clotting. Vitamin D, on the other hand, does not have a direct effect on erythrocyte function.

Which Properties Do Vitamins D and K Share? ​

Which Properties Do Vitamins D and K Share?