Channels that open when they come in contact with specific chemicals are known as
A) sodium-potassium pumps.
B) ligand-gated channels.
C) voltage-dependent channels.
D) phospholipid pumps.

Question

Quizplus · Accepted Answer

Ligand-gated channels are channels that open when they come in contact with specific chemicals (ligands). Examples include neurotransmitter receptors and hormone receptors. Sodium-potassium pumps are not channels, but rather a type of membrane transport protein that uses ATP to move ions across the cell membrane. Voltage-dependent channels are channels that open in response to changes in membrane potential, and phospholipid pumps do not exist.

Channels That Open When They Come in Contact with Specific