Channel proteins provide a tunnel through which ions or molecules can enter or leave the cell. They are integral membrane proteins that form a pore or channel that spans the cell membrane, allowing specific molecules or ions to pass through.

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Channel Proteins

Question 40

Multiple Choice

Channel proteins

A) allow cells to recognize one another.
B) are binding sites for other molecules.
C) utilize the G protein complex to function.
D) are found only on endoplasmic reticulum.
E) provide a tunnel through which ions or molecules can enter or leave the cell.

Correct Answer: