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

Previous problemNext problem

Struggling with Biochemistry?

Join thousands of students who trust us to help them ace their exams!Watch the first video

Multiple Choice

Which of the following binds to the active site of an enzyme?

Inhibitor

Substrate

Product

Cofactor

Previous problemNext problem

Verified step by step guidance

Understand the concept of an enzyme's active site: The active site is the region of an enzyme where substrate molecules bind and undergo a chemical reaction. It is highly specific to the substrate due to its unique shape and chemical properties.

Define the term 'substrate': A substrate is the molecule upon which an enzyme acts. It binds to the active site and is converted into a product during the enzymatic reaction.

Differentiate between the options provided: An inhibitor binds to an enzyme but typically does not bind to the active site in the same way as a substrate. Instead, it prevents the enzyme from functioning properly. A product is the result of the enzymatic reaction and does not bind to the active site. A cofactor is a non-protein molecule that assists enzyme activity but does not bind to the active site in the same manner as a substrate.

Focus on the correct answer: The substrate is the molecule that specifically binds to the active site of an enzyme to initiate the reaction.

Summarize the reasoning: Based on the definitions and roles of the options provided, the substrate is the correct answer because it directly interacts with the active site to undergo a chemical transformation.