The Major Factor Controlling the Onset of Puberty in Males

question 100

Multiple Choice

The major factor controlling the onset of puberty in males is

• A) a decrease in GnRH levels.
• B) the production of testosterone by the testes.
• C) the ability of the pituitary to secrete FSH and LH.
• D) the hypothalamus becoming less sensitive to the inhibitory effects of androgens.
• E) None of the choices are correct.

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Definitions:

Lignin

A complex organic polymer deposited in the cell walls of many plants, making them rigid and woody.

Cellulose

A complex carbohydrate that constitutes the primary structural component of plant cell walls and is a dietary fiber in human nutrition.

Longitudinal Section

A slice or section of an object or organism made along its length, used to visualize internal structures in relation to its long axis.

Parenchyma

Tissue found in plants, consisting of unspecialized living cells with thin cell walls, involved in photosynthesis, storage, and tissue repair.