Q:

The skin participates in the production of vitamin D when which of the following occurs? When

0

The skin participates in the production of vitamin D when which of the following

occurs? When


  1. calcium is present
  2. signalled to by the hormone PTH
  3. exposed to ultraviolet radiation
  4. the precursor molecule is produced by the liver

All Answers

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C:UV light converts cholecalciferol (= provitamin D3) into vitamin

D pre-cursor. The liver then adds a hydroxyl group.

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