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

The induced fit model of enzyme catalysis states that _____________.

the enzyme and substrate do not interact until the reaction is complete

the enzyme changes its shape upon substrate binding to better fit the substrate

the substrate is permanently altered to fit the enzyme's active site

the enzyme's active site is a rigid structure that perfectly matches the substrate before binding

Previous problemNext problem

Verified step by step guidance

Understand the concept of the induced fit model: This model explains how enzymes interact with substrates during catalysis. Unlike the lock-and-key model, the induced fit model suggests that the enzyme's active site is flexible and changes shape upon substrate binding.

Recognize the key feature of the induced fit model: The enzyme undergoes a conformational change to better accommodate the substrate, enhancing the efficiency of the catalytic process.

Eliminate incorrect options: Review the provided choices and discard those that contradict the induced fit model. For example, the idea that the enzyme's active site is rigid or that the substrate is permanently altered does not align with this model.

Focus on the correct explanation: The induced fit model emphasizes that the enzyme changes its shape upon substrate binding to create a better fit, facilitating the reaction.

Summarize the concept: The induced fit model highlights the dynamic nature of enzyme-substrate interactions, where the enzyme adapts its structure to optimize catalysis.