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 term best describes a type of protein that speeds up a chemical reaction in a living organism?

Receptor

Enzyme

Antibody

Hormone

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Verified step by step guidance

Understand the role of proteins in biological systems: Proteins are macromolecules that perform a variety of functions, including structural support, signaling, immune defense, and catalysis of chemical reactions.

Define the term 'enzyme': An enzyme is a type of protein that acts as a biological catalyst, speeding up chemical reactions in living organisms without being consumed in the process.

Compare the given options: Analyze the roles of each term provided: 'Receptor' (binds signaling molecules), 'Antibody' (immune defense), 'Hormone' (chemical signaling), and 'Enzyme' (catalysis).

Identify the correct term: Based on the definition of an enzyme, recognize that it is the protein responsible for accelerating chemical reactions in living organisms.

Conclude the reasoning: Confirm that 'enzyme' is the best term to describe a protein that speeds up a chemical reaction in a living organism, as none of the other options fulfill this specific role.