Question 17

Skin aids in maintaining calcium and phosphate levels through Vitamin D production.

The skin plays a crucial role in regulating calcium and phosphate levels in the body by producing Vitamin D when exposed to sunlight. This Vitamin D is essential for the absorption of calcium in the intestines and for maintaining overall mineral balance.

A) Sebum production

Sebum production is primarily related to the skin's role in lubrication and protection. While sebum helps to maintain skin integrity, it does not directly influence calcium or phosphate levels in the body, making this option incorrect.

B) Keratin synthesis

Keratin synthesis is vital for the structural integrity of the skin, hair, and nails. However, keratin does not have any direct involvement in the regulation of calcium and phosphate levels, rendering this option incorrect as well.

C) Vitamin A synthesis

Vitamin A synthesis, while important for vision and immune function, does not play a role in regulating calcium and phosphate levels in the body. Thus, this option is not relevant to the question and is incorrect.

D) Vitamin D production

Vitamin D production is the correct answer, as the skin synthesizes Vitamin D when exposed to UV radiation. This vitamin is critical for enhancing the intestinal absorption of calcium and phosphate, thus maintaining their appropriate levels in the body.

Conclusion

Vitamin D production is essential for the regulation of calcium and phosphate levels, which are crucial for bone health and metabolic functions. All other options fail to address this specific role of the skin, highlighting the unique importance of Vitamin D in mineral homeostasis.