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

In a reaction where substrate is present in excess, what effect would the addition of an enzyme have on the amount of product formed in 3 seconds?

The amount of product formed would remain the same as in the reaction without the enzyme.

The amount of product formed would decrease compared to the reaction without the enzyme.

No product would be formed in the presence of the enzyme.

The amount of product formed would increase compared to the reaction without the enzyme.

Previous problemNext problem

Verified step by step guidance

Understand the role of enzymes in biochemical reactions: Enzymes are biological catalysts that speed up the rate of a reaction by lowering the activation energy required for the reaction to proceed. They do not alter the equilibrium of the reaction but increase the rate at which equilibrium is reached.

Analyze the scenario: The problem states that the substrate is present in excess. This means there is more than enough substrate available for the enzyme to act upon, ensuring that the reaction is not limited by substrate availability.

Consider the effect of the enzyme: In the presence of an enzyme, the reaction rate increases. This means that more substrate molecules are converted into product per unit of time compared to the reaction without the enzyme.

Relate the time frame: The problem specifies a time frame of 3 seconds. Since the enzyme accelerates the reaction, the amount of product formed in 3 seconds will be greater in the presence of the enzyme than in its absence.

Conclude the reasoning: Based on the principles of enzyme catalysis and the conditions provided (excess substrate and a short time frame), the correct answer is that the amount of product formed would increase compared to the reaction without the enzyme.