When membrane-bound receptors like HER2 bind to molecules outside of the cell,they must move through the membrane and bind to a second HER2 receptor,forming a dimer,in order for the signal to be sent inside the cell.This is possible because the cell membrane is _____.

Question

Quizplus · Accepted Answer

A fluid mosaic describes the cell membrane as composed of various fluid components, including lipids and proteins, that can move and interact with each other. This fluidity allows membrane-bound receptors like HER2 to move and dimerize in response to binding of molecules outside of the cell. The other answer choices do not accurately describe the properties of the cell membrane that enable receptor dimerization.

When Membrane-Bound Receptors Like HER2 Bind to Molecules Outside of the Cell,they