Considering the Following Events Reflecting How Vitamin D Is Synthesized

question 16

Multiple Choice

Considering the following events reflecting how vitamin D is synthesized and activated, which one of the following answers best represents the order in which these events occur?
A. Inactive vitamin D is transported to the liver where it is modified.
B. Inactive vitamin D is transported to the kidneys.
C. UV light strikes the skin and converts a steroid molecule into an inactive form of vitamin D.
D. Vitamin D is activated under the influence of PTH.

• A) a, b, c, d
• B) c, b, a, d
• C) c, a, b, d
• D) a, c, b, d
• E) d, a, c, b

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