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 term describes a specific reactant that is acted upon by an enzyme?

Cofactor

Inhibitor

Product

Substrate

Previous problemNext problem

Verified step by step guidance

Understand the role of enzymes in biochemical reactions: Enzymes are biological catalysts that speed up chemical reactions by lowering the activation energy required for the reaction to occur.

Learn the definition of a substrate: A substrate is the specific reactant molecule that an enzyme binds to and acts upon during a biochemical reaction.

Differentiate between the given terms: Cofactor refers to a non-protein molecule or ion that assists enzyme activity, inhibitor refers to a molecule that decreases enzyme activity, and product refers to the molecule(s) formed after the reaction. Substrate is the correct term for the reactant acted upon by the enzyme.

Visualize the enzyme-substrate interaction: The substrate binds to the enzyme's active site, forming an enzyme-substrate complex. This interaction is highly specific, often described as a 'lock and key' model.

Conclude that the correct term for the specific reactant acted upon by an enzyme is 'substrate,' based on the definitions and roles of the terms provided.