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

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Multiple Choice

Enzymes classified as oxidoreductases catalyze which type of reaction?

Hydrolysis of peptide bonds

Transfer of electrons (redox reactions)

Transfer of phosphate groups

Formation of carbon-carbon bonds

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Verified step by step guidance

Understand the classification of enzymes: Enzymes are categorized into six major classes based on the type of reaction they catalyze. Oxidoreductases are one of these classes.

Define oxidoreductases: Oxidoreductases are enzymes that catalyze oxidation-reduction (redox) reactions, which involve the transfer of electrons between molecules.

Clarify the concept of redox reactions: In a redox reaction, one molecule is oxidized (loses electrons) while another is reduced (gains electrons). These reactions are essential in energy metabolism and cellular respiration.

Eliminate incorrect options: Hydrolysis of peptide bonds is catalyzed by hydrolases, transfer of phosphate groups is catalyzed by transferases, and formation of carbon-carbon bonds is catalyzed by ligases. None of these are functions of oxidoreductases.

Conclude the correct answer: Oxidoreductases specifically catalyze the transfer of electrons, making 'Transfer of electrons (redox reactions)' the correct answer.