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

Which of the following best describes the function of an enzyme?

It acts as a biological catalyst to speed up chemical reactions without being consumed.

It provides energy for cellular processes by breaking down ATP.

It serves as a structural component of cell membranes.

It stores genetic information in the form of nucleic acids.

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Verified step by step guidance

Understand the definition of an enzyme: An enzyme is a protein that acts as a biological catalyst, meaning it speeds up chemical reactions without being consumed or permanently altered in the process.

Eliminate incorrect options: Review the provided choices and identify which ones do not align with the definition of an enzyme. For example, enzymes do not store genetic information (this is the role of nucleic acids like DNA and RNA).

Clarify the role of ATP: Enzymes do not directly provide energy by breaking down ATP; rather, enzymes may catalyze reactions involving ATP, but their primary function is catalysis, not energy provision.

Consider structural components: Enzymes are not structural components of cell membranes. While some enzymes may be embedded in membranes, their primary role is catalysis, not structural support.

Select the correct answer: Based on the definition and elimination of incorrect options, the correct description of an enzyme is that it acts as a biological catalyst to speed up chemical reactions without being consumed.