Chapter 6, Problem 14TYPSS

Summary Introduction

To review:

The individual molecules arranged in the form of a bilayer in phospholipid bilayer can flip-flop, which means that a phospholipid could turn 180° and thus, become a part of the membrane's other surface. Predict whether the flip-flops in phospholipids are rare or frequent and design an experiment to prove the prediction.

Introduction:

Phospholipid bilayer is a polar membrane composed of two layers of lipid molecules. These membranes protect the cells by surrounding it. They have hydrophilic heads, which are exposed to water and hydrophobic tails, which remain sandwiched between hydrophilic heads.