Chapter 4:

Cellular Metabolism

Part I:

Metabolic Processes

Control of Metabolic Reactions

• Metabolism: 1.

2.

• This chapter1.

2.

Metabolic Processes

• anabolism 1.

2.

• catabolism: 1.

2.

Metabolic Processes

• anabolism: 1.

2.

• dehydration synthesis 1.

2. Ex:

Metabolic Processes

• Catabolism: 1.

2.

• Hydrolysis: 1.

2.

Metabolic Processes

Metabolic Processes

• anabolism and catabolism must be balanced

Control of Metabolic Reactions

• Different cells have

• ALL cells

• Enzymes control rate of these metabolic reactions1.

2.

• Enzyme Action1.

2.

3.

4.

Control of Metabolic Reactions

Control of Metabolic Reactions

• Enzyme Action1.

2.

3.

4.

Substrate + Enzyme

Enzyme-Substrate Complex

Product + Enzyme

Control of Metabolic Reactions

Control of Metabolic Reactions

• Speed of reaction1.

2.

• Metabolic pathway: 1.

2.

Control of Metabolic Pathways

• Enzyme names1.

2. Ex:

• Cofactors and Coenzymes1.

2.

• Cofactors1.

• Coenzymes1.

2.

Control of Metabolic Reactions

Factors that alter enzymes

• Enzymes are

• Denatured by:

• Example:

Control of Metabolic Reactions