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

Organic catalysts made by a living cell to increase the rates of reactions are called __________.

enzymes

substrates

hormones

cofactors

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Verified step by step guidance

Step 1: Understand the question. The problem is asking for the term used to describe organic catalysts made by living cells that increase the rates of reactions.

Step 2: Recall the definition of enzymes. Enzymes are biological molecules, typically proteins, that act as catalysts to speed up chemical reactions in living organisms without being consumed in the process.

Step 3: Compare the other options provided: substrates, hormones, and cofactors. Substrates are the reactants that enzymes act upon, hormones are signaling molecules, and cofactors are non-protein molecules that assist enzymes but are not themselves catalysts.

Step 4: Eliminate incorrect options based on their definitions. Substrates, hormones, and cofactors do not fit the description of organic catalysts made by living cells.

Step 5: Conclude that the correct answer is 'enzymes,' as they match the definition provided in the question.