In What Organ Does the Hydroxylation at the 1 Position

question 6

Multiple Choice

In what organ does the hydroxylation at the 1 position of 25-hydroxy vitamin D3 occur, forming the active form of the vitamin?

• A) Adrenals
• B) Intestines
• C) Kidney
• D) Liver
• E) Skin

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Definitions:

Allogrooming

The practice among animals of grooming each other, which serves social bonding and hygiene purposes.

Concealed Ovulation

A phenomenon in some species where there are no obvious visible signs to males when the female is fertile.

Primates

An order of mammals that includes humans, apes, monkeys, and prosimians, characterized by large brains, forward-facing eyes, and dexterous hands.

Brachiation

A form of locomotion used by some primates, involving swinging from one arm to another through trees with a hand-over-hand movement, critical for moving through canopy levels in forests.