Moderate

Active form of vitamin D in kidney is_____________?

Correct answer: C. 1,25 dihydroxy cholecalciferol

  • A. 1 dihydroxy cholecalciferol
  • B. 25 hydroxy cholecalciferol
  • C. 1,25 dihydroxy cholecalciferol
  • D. 7 dihydroxy calciferol

Explanation

The kidney converts 25-hydroxycholecalciferol into 1,25-dihydroxycholecalciferol, the active hormonal form of vitamin D. The 25-hydroxy form is the principal circulating storage form, not the active renal product.

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