If a Change in the Voltage of a Cell Membrane

question 8

Multiple Choice

If a change in the voltage of a cell membrane causes all the voltage-gated Na⁺ channels to open, the permeability of the cell membrane to Na⁺ has been

• A) inhibited.
• B) decreased.
• C) increased.
• D) unaffected.

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Definitions:

Progestin

A hormone that is used to maintain pregnancy and can also cause masculinization of the fetus.

Masculinization

The process by which male physical, behavioral, and physiological traits are developed, often influenced by hormones like testosterone.

Pregnancy

The period during which a fetus develops inside a woman’s uterus, typically lasting about 40 weeks from the last menstrual period to childbirth.

Toxemia

A medical condition in pregnancy characterized by high blood pressure, swelling, and protein in the urine.