Chapter 11, Problem 8Q

A.

Summary Introduction

To explain: Lipids in a lipid bilayer spin rapidly around their long axis.

B.

Summary Introduction

To explain: Lipids in a bilayer rapidly exchange positions with one another in their own monolayer.

C.

Summary Introduction

To explain: Lipids in a lipid bilayer do not flip-flop readily from one lipid monolayer to the other.

D.

Summary Introduction

To explain: Hydrogen bonds that form between lipid head groups and water molecules are continually broken and re-formed.

E.

Summary Introduction

To explain: Glycolipids move between different membrane-enclosed compartments during their synthesis but remain restricted to one side of the lipid which it is made.

F.

Summary Introduction

To explain: Margarine contains more saturated lipids than the vegetable oil from which it is made.

G.

Summary Introduction

To explain: Some membrane proteins are enzymes.

H.

Summary Introduction

To explain: The sugar layer that surrounds all cells makes cells more slippery.