In Contrast to Transporters, the Channel Proteins in Cellular Membranes

Question

In contrast to transporters, the channel proteins in cellular membranes …
A) interact strongly with the solute(s) that they transport.
B) undergo a conformational change every time they transport a solute.
C) can only mediate passive transport.
D) form pores that are always open.

Accepted Answer

Channels interact weakly with the solutes, resulting in faster transport rates compared to transporters. They do not change their conformation in every transport cycle, but they do have mechanisms for the opening and closing of their pores. Transport through channels is always passive.