When Is the Peak Bone Mass of a Female Typically

question 19

Multiple Choice

When is the peak bone mass of a female typically achieved?

• A)By the end of adolescence
• B)By approximately 30 years of age
• C)Within the decade preceding menopause
• D)After the onset of menopause

---

Definitions:

Intracellular Receptors

Proteins located inside the cell that bind to certain substances and initiate a specific cellular response.

First Messenger

A signaling molecule that binds to a receptor on the cell surface, initiating a signal transduction process that leads to the formation of an intracellular second messenger.

Ion Channel

An ion channel is a protein structure embedded in cell membranes that allows ions to pass through the membrane selectively.

Ligand

A molecule that binds specifically to another molecule, usually a larger one, in a reversible manner.