Question

question 20 not yet answered points out of 1.00 flag question which type(s) of membrane proteins may form gated channels or pumps? select one: a. nuclear fission b. lipoprotiens c. peripheral proteins d. integral proteins e. glycoproteins

Explanation:

• Option a: Nuclear fission is a nuclear process, not related to membrane proteins.
• Option b: Lipoproteins transport lipids, not form channels/pumps.
• Option c: Peripheral proteins are on the membrane surface, not for channels/pumps.
• Option d: Integral proteins span the membrane, can form gated channels or pumps (e.g., ion channels, transporters).
• Option e: Glycoproteins have carbohydrate chains, mainly for cell recognition, not channels/pumps.

Answer:

d. Integral proteins