Vitamin D Is Activated by

question 22

Multiple Choice

Vitamin D is activated by

• A) Hydroxylation at the 25 position in the liver
• B) Hydroxylation at the 1 position in the liver
• C) Hydroxylation at the 1 position in the kidney
• D) Hydroxylation at the 25 position in the kidney
• E) Both A and C are true

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Definitions:

Truth-functional Compound

A compound statement whose truth value depends solely on the truth values of its components.

Quantifier

A logical tool that counts the instances within a discourse domain adhering to the conditions of an open formula.

Atomic Open Sentence

A type of statement in logic, which contains at least one variable, and becomes a proposition once the variables are replaced by specific values.

Compound

A substance formed from two or more elements chemically united in fixed proportions, or in logic, a sentence that combines two or more atomic sentences with logical connectives.