Vitamin ____ functions as a hormone in maintaining the body's concentration of calcium and phosphorus.Multiple choice question.AEDK

Break Down the Problem

1. Identify the vitamin that functions as a hormone.
2. Understand how this vitamin affects calcium and phosphorus levels in the body.
3. Assess the options provided (A, D, E, K).

Relevant Concepts

1. Vitamins are organic compounds essential for various metabolic processes in the body.
2. Certain vitamins can act hormonally to regulate bodily functions.
3. Calcium and phosphorus balance is crucial for healthy bones, teeth, and overall metabolic function.

Analysis and Detail

• Vitamin A (A) is primarily involved in vision and immune function.
• Vitamin D (D), known for its role in calcium and phosphorus metabolism, promotes absorption of calcium in the gut and maintains adequate serum calcium levels.
• Vitamin E (E) is an antioxidant that protects cell membranes.
• Vitamin K (K) is essential for blood clotting.

From this analysis, Vitamin D stands out as the vitamin that functions as a hormone to regulate calcium and phosphorus concentrations in the body.

Verify and Summarize

After reviewing each option, Vitamin D is most directly involved in managing the body's concentration of calcium and phosphorus, aligning it with the function described.

Final Answer

Vitamin D functions as a hormone in maintaining the body's concentration of calcium and phosphorus.