Chapter 8, Problem 6CTQ

a.

Summary Introduction

To compare:

The main reactions of aerobic reaction, anaerobic reaction, and fermentation in a diagram.

Concept Introduction:

Aerobic reactions take place in the presence of oxygen. An anaerobic reaction takes place in the absence of oxygen. Fermentation takes place in the absence of oxygen due to incomplete oxidation of glucose molecule.

b.

Summary Introduction

To explain:

Final electron acceptors in aerobic, anaerobic and fermentation production.

Concept Introduction:

Bacteria have anaerobic systems for reduction of ions through enzymes like nitrate to nitrite by the use of enzyme nitrate reductase. Reduction of carbonates and nitrates also takes place inside the bacterial cell.

Summary Introduction

To explain:

Numbers of ATP’s are produced in each process, explaining why this value varies among these biochemical reactions.

Concept introduction:

Biochemical reactions take place inside the cell. They involve the use of enzymes which convert one metabolite into another inside the cell. Energy is provided by ATP molecule, NADH or FADH₂ molecules inside the metabolic pathway.