Mark all that apply.

Which of these are functions of Vitamin D?

Question

Mark all that apply.

Which of these are functions of Vitamin D?

BlackTom AI · Accepted Answer

The question asks to identify all functions of Vitamin D from the given options.

Option A: 'Aids in absorption of phosphorus' — Vitamin D increases the intestinal absorption of phosphate (phosphorus) in addition to calcium. This mechanism helps maintain phosphorus balance and supports bone mineralization, so this statement is accurate.

Option B: 'Aids in absorption of calcium' — Vitamin D is well known for upregulating the expression of calcium-binding proteins in the intestinal lining, thereby increasing calcium absorption from the gut. This is a primary and well-established function of Vitamin D, making this statement accurate as well.

In summary, both listed functions align with the physiological role of Vitamin D in facilitating the absorption of minerals essential for bone health. This contrasts with options that would claim Vitamin D only affects one mineral or has no role in mineral absorption, which would be incorrect given the vitamin's dual role in calcium and phosphate (phosphorus) uptake.

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