Question

31.

32
The cell membrane contains channels and pumps that help move materials from one side to the other. What
are these channels and pumps made of?
carbohydrates
a.
b. lipids
c. proteins
d. bilipids

Answer 1

The channels and pumps in the cell membrane are made of proteins.

Step-by-step explanation:

The channels and pumps in the cell membrane are made of proteins. These proteins form various types of channels and pumps that facilitate the movement of materials across the cell membrane. Channels are protein structures that create passageways for ions and other small molecules to move across the membrane, while pumps are proteins that actively transport molecules against their concentration gradient, requiring energy.

Learn more about Cell membrane structure and function