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

Enzyme-Substrate Complex

Biochemistry

6. Enzymes and Enzyme Kinetics

Enzyme-Substrate Complex

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Multiple Choice

Where does the substrate bind to the enzyme?

At the regulatory domain

At the allosteric site

At the N-terminus

At the active site

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Verified step by step guidance

Understand the basic structure of an enzyme: Enzymes are proteins that catalyze biochemical reactions. They have specific regions, such as the active site, allosteric site, and regulatory domains, which play distinct roles in their function.

Define the active site: The active site is the region of the enzyme where the substrate binds. It is specifically shaped to fit the substrate, allowing the enzyme to catalyze the reaction efficiently.

Differentiate between the active site and other regions: The regulatory domain is involved in controlling the enzyme's activity, while the allosteric site is a secondary site where molecules can bind to influence enzyme function. The N-terminus is the start of the protein chain and does not typically interact with the substrate.

Explain substrate binding: The substrate binds to the active site through specific interactions, such as hydrogen bonding, ionic interactions, or hydrophobic forces. This binding is highly specific, often described as a 'lock and key' or 'induced fit' model.

Conclude the answer: Based on the definitions and roles of the enzyme's regions, the substrate binds to the active site, which is the correct answer to the question.