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
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