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

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

Enzymes ______ the rate of a chemical reaction.

decrease

increase

have no effect on

reverse

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 proceed.

Recall the concept of activation energy: Activation energy is the energy barrier that must be overcome for a reaction to occur. Enzymes work by stabilizing the transition state, making it easier for reactants to convert into products.

Eliminate incorrect options: Enzymes do not decrease the rate of a reaction, as their primary function is to increase it. They also do not reverse reactions, as they only facilitate the reaction in the direction dictated by thermodynamics.

Consider the correct effect: Enzymes increase the rate of a chemical reaction by providing an alternative reaction pathway with a lower activation energy.

Conclude the correct answer: Based on the above reasoning, the correct answer is 'increase.'