Chapter 11, Problem 4P

(a)

Summary Introduction

To explain: The properties of lipids responsible for the given property of lipid bilayers.

Introduction:

Plasma membrane consists of lipid bilayer in which protein, carbohydrates, and cholesterol are embedded. Plasma membrane is a selectively permeable membrane because it allows the entry of only selected particles inside the cell.

(b)

Summary Introduction

To explain: The consequences of lipid bilayers property for structure of biological membrane.

Introduction:

Plasma membrane is a selectively permeable membrane because it allows the entry of only selected particles inside the cell. It is also involved in maintenance of structural integrity of cell.