Chapter 8, Problem 8.4PS

Summary Introduction

To explain: Two reasons that argue against the transverse carrier model based on current understanding of membrane and on thermodynamic considerations.

Introduction: Membrane transport is the mechanism that monitors the passage of molecules and ions across the cell membrane. The cell membrane is made up of the lipid bilayer in which the proteins are embedded. At one time, membrane biologists thought that transport protein might act by binding a solute molecule or ion on one side of the membrane and then diffusing across the membrane to release that solute molecule on the other side.