Table of contents

1. Introduction to Biochemistry4h 34m
2. Water3h 23m
3. Amino Acids8h 10m
4. Protein Structure10h 4m
5. Protein Techniques14h 5m
6. Enzymes and Enzyme Kinetics13h 38m
7. Enzyme Inhibition and Regulation 8h 42m
8. Protein Function 9h 41m
9. Carbohydrates7h 49m
10. Lipids5h 49m
11. Biological Membranes and Transport 6h 37m
12. Biosignaling9h 45m
Review 1: Nucleic Acids, Lipids, & Membranes2h 47m
Review 2: Biosignaling, Glycolysis, Gluconeogenesis, & PP-Pathway3h 12m
Review 3: Pyruvate & Fatty Acid Oxidation, Citric Acid Cycle, & Glycogen Metabolism2h 26m
Review 4: Amino Acid Oxidation, Oxidative Phosphorylation, & Photophosphorylation1h 48m

6. Enzymes and Enzyme Kinetics

Enzymes

Biochemistry

6. Enzymes and Enzyme Kinetics

Enzymes

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Multiple Choice

Which activity completes an enzyme-controlled reaction?

The release of products from the active site

The formation of the enzyme-substrate complex

The denaturation of the enzyme

The binding of substrate to the enzyme

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Verified step by step guidance

Understand the concept of an enzyme-controlled reaction: Enzymes are biological catalysts that speed up chemical reactions by lowering the activation energy. They work by binding substrates to their active site, forming an enzyme-substrate complex.

Step 1: Recognize the sequence of events in an enzyme-controlled reaction. The process typically involves: (1) substrate binding to the enzyme's active site, (2) formation of the enzyme-substrate complex, (3) catalysis of the reaction, and (4) release of products from the active site.

Step 2: Evaluate the options provided in the question. The release of products from the active site is the final step in the enzyme-controlled reaction, completing the process. The formation of the enzyme-substrate complex is an intermediate step, while denaturation of the enzyme disrupts its function and is not part of a normal reaction.

Step 3: Eliminate incorrect options. Denaturation of the enzyme is not part of a functional enzyme-controlled reaction, as it leads to loss of enzyme activity. Binding of the substrate to the enzyme is an initial step, not the completion of the reaction.

Step 4: Conclude that the correct activity completing an enzyme-controlled reaction is the release of products from the active site, as this signifies the reaction has been successfully catalyzed and the enzyme is ready for another cycle.