Question

The major functions of Vitamin D include:

• A. Role in Vision
• B. Role in reproduction
• C. Intestinal absorption of Calcium and Phosphate and Mineralisation of Bones
• D. Role in Blood coagulation

Hint:

Remember that while Vitamin D is important for bone health, it also has other roles such as supporting immune function and potentially reducing the risk of certain diseases, but these are not its primary functions among the given options.

Answer 1

The Correct Option is C

Step 1: Concept
Vitamin D is a fat-soluble vitamin that plays crucial roles in the body, including calcium and phosphate metabolism.

Step 2: Meaning
The major functions of Vitamin D involve maintaining bone health by promoting the absorption of calcium and phosphate from the intestines. It also aids in mineralization processes necessary for strong bones.

Step 3: Analysis
Option A) Role in Vision: While some studies suggest a link between Vitamin D levels and eye health, it is not one of its primary functions. Option B) Role in Reproduction: Vitamin D does play a role in reproductive health, but this is not its major function related to the options provided. Option C) Intestinal absorption of Calcium and Phosphate and Mineralisation of Bones: This accurately describes two key roles of Vitamin D. It enhances calcium and phosphate absorption from the intestines and promotes bone mineralization, which are critical for maintaining strong bones. Option D) Role in Blood Coagulation: While Vitamin K is more directly involved in blood coagulation, Vitamin D does not play a significant role here.

Step 4: Conclusion
The major functions of Vitamin D include intestinal absorption of calcium and phosphate, as well as the mineralization of bones. These processes are essential for maintaining bone health and preventing conditions like osteoporosis. Final Answer: (C)