Table of contents

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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

Types of Enzymes

Biochemistry

6. Enzymes and Enzyme Kinetics

Types of Enzymes

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Multiple Choice

Below is a reaction in the oxidative phase of the pentose phosphate pathway catalyzed by the enzyme gluconolactonase. This enzyme would be classified as what type?

Transferase.

Hydrolyase.

Lyase.

Isomerase.

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Verified step by step guidance

Examine the chemical reaction catalyzed by gluconolactonase. The substrate is a cyclic ester (lactone) and the product is a linear carboxylic acid.

Identify the role of water (H₂O) in the reaction. Water is added to the substrate, indicating a hydrolysis reaction.

Understand the function of gluconolactonase. It catalyzes the hydrolysis of the lactone ring, converting it into a linear structure.

Classify the enzyme based on the type of reaction it catalyzes. Enzymes that catalyze hydrolysis reactions are classified as hydrolases.

Review the options provided: Transferase, Hydrolyase, Lyase, Isomerase. Based on the reaction type, gluconolactonase is correctly classified as a hydrolase.