Ion pumps differ from ion channels in that
A) they allow different types of ions to cross the neural membrane.
B) pumps respond to ligands and drugs, whereas channels respond to the electrical environment in their immediate vicinity.
C) channels require energy to operate, whereas pumps do not.
D) pumps require energy to function, whereas channels do not.

Question

Quizplus · Accepted Answer

Ion pumps require energy to function, whereas ion channels do not. Ion pumps actively transport ions across the membrane against their concentration gradient, while ion channels allow passive diffusion of ions across the membrane based on their electrochemical gradient. Additionally, ion pumps have a lower rate of ion transport compared to ion channels.

Ion Pumps Differ from Ion Channels in That