Which of the Following Processes Requires a Channel Protein

question 3

Multiple Choice

Which of the following processes requires a channel protein?

• A) diffusion only
• B) facilitated diffusion only
• C) active transport only
• D) endocytosis only
• E) both facilitated diffusion and active transport

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Definitions:

Infundibulum

A funnel-shaped cavity or structure, especially the stalk connecting the pituitary gland to the hypothalamus in the brain.

Fimbriae

Finger-like projections at the end of the fallopian tubes that help guide the egg from the ovary towards the uterus.

Ciliary Action

The movement of cilia, small hair-like structures, which work to move particles or fluids over the surface of certain cells.

Corpus Luteum

A temporary endocrine structure in female ovaries that is involved in the production of progesterone and estrogen during the menstrual cycle and early pregnancy.