If the cells are physically close to one another, a signaling molecule on one cell may combine with a _________ on another cell.
A) ligand
B) vacuole
C) peripheral membrane protein
D) receptor
E) membrane

Question

Quizplus · Accepted Answer

A signaling molecule on one cell combines with a receptor on another cell to initiate a response, facilitating cell-to-cell communication.

If the Cells Are Physically Close to One Another, a Signaling