Which Membrane Transporters Are Small, Highly Selective Pores in the Cell

question 23

Multiple Choice

Which membrane transporters are small, highly selective pores in the cell membrane?

• A) pumps
• B) ion channels
• C) carriers
• D) symporters

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Definitions:

Abdominal Aorta

The largest artery in the abdominal cavity that supplies oxygenated blood to much of the abdominal and pelvic organs and the legs.

Arteriosclerosis

The thickening, hardening, and loss of elasticity of artery walls, often leading to restricted blood flow.

Degenerative Changes

Alterations to body tissues or organs leading to a decline in function or structure, often associated with aging or chronic conditions.

Plasma Volume

The volume of plasma, the liquid component of blood without the cells, important for maintaining blood pressure and volume.