Question

multiple select question
select all that apply
select the plasma membrane proteins.

• steroid proteins
• receptor proteins
• channel proteins
• carrier proteins
• identity markers

Explanation:

Plasma membrane proteins have different functions. Receptor proteins bind to signaling molecules, channel proteins allow ion/molecule passage, carrier proteins transport substances, and identity markers (like glycoproteins) identify the cell. Steroid proteins are not plasma membrane proteins (steroids are lipids, not typical membrane - associated proteins in this context). So receptor proteins, channel proteins, carrier proteins, and identity markers are plasma membrane proteins.

Answer:

B. Receptor proteins, C. Channel proteins, D. Carrier proteins, E. Identity markers