The Exchange of Gases Across a Respiratory Surface Always Occurs

question 32

Multiple Choice

The exchange of gases across a respiratory surface always occurs by

• A)facilitated transport.
• B)active transport.
• C)diffusion.
• D)bulk flow.
• E)osmosis.

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Definitions:

Birth Control Pills

Medications taken orally to prevent pregnancy by inhibiting ovulation, thickening cervical mucus, or altering the uterine lining.

Prostate Gland

Gland in male humans that secretes an alkaline, cloudy fluid that increases the motility of sperm.

Vas Deferens

A long, muscular tube that transports mature sperm from the testes to the urethra in preparation for ejaculation.

Bulbourethral Gland

A gland in males that secretes a fluid into the urethra to lubricate and neutralize acidity before ejaculation.