For which of the following functions is Vitamin D is important?

Question

BlackTom AI · Accepted Answer

The question asks: For which of the following functions is Vitamin D important? 
Option 1: Vision. Vitamin A is the nutrient most closely linked to vision, especially in low-light conditions; vitamin D is not known for this role, so this option is incorrect.
Option 2: Antioxidant function. Vitamin D does not primarily function as an antioxidant. Antioxidants are typically vitamins like C and E, or minerals and enzymes; thus this claim is inaccurate for vitamin D.
Option 3: Red blood cell production. While some vitamins are involved in red blood cell production (e.g., folate, vitamin B12), vitamin D’s main established roles are not in erythropoiesis. So this option is not correct.
Option 4: Blood clotting. Vitamin K is the key vitamin involved in blood coagulation pathways; vitamin D is not the primary driver of clotting processes. Therefore this option is incorrect.
Option 5: Calcium absorption and bone health. Vitamin D promotes calcium absorption in the gut and is essential for maintaining proper calcium and phosphate balance, which supports bone formation and health. This aligns with the well-established role of vitamin D in skeletal health, making this option correct.
In summary, only the last option matches the recognized primary function of vitamin D in the body, while the others describe roles associated with different nutrients or processes and do not reflect vitamin D’s main functions.

For which of the following functions is Vitamin D is important?

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For which of the following functions is Vitamin D is important?

View Explanation

Log in for full answers

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Comprehension-Level Multiple-Choice Items A person’s absorption of calcium varies based on: