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1. Introduction to Anatomy & Physiology5h 40m
2. Cell Chemistry & Cell Components12h 37m
3. Energy & Cell Processes10h 7m
4. Tissues & Histology10h 3m
5. Integumentary System2h 20m
6. Bones & Skeletal Tissue2h 16m
7. The Skeletal System2h 35m
8. Joints2h 17m
9. Muscle Tissue2h 33m
10. Muscles1h 11m
11. Nervous Tissue and Nervous System1h 35m
12. The Central Nervous System1h 6m
- Introduction to the Central Nervous System
  18m
- The Cerebrum
  48m
13. The Peripheral Nervous System1h 26m
14. The Autonomic Nervous System1h 38m
15. The Special Senses2h 41m
16. The Endocrine System2h 48m
17. The Blood1h 22m
18. The Heart1h 42m
19. The Blood Vessels3h 35m
20. The Lymphatic System3h 16m
21. The Immune System14h 37m
22. The Respiratory System3h 20m
23. The Digestive System2h 5m
24. Metabolism and Nutrition4h 0m
25. The Urinary System2h 39m
26. Fluid and Electrolyte Balance, Acid Base Balance Coming soon
27. The Reproductive System2h 5m
28. Human Development1h 21m
29. Heredity Coming soon

3. Energy & Cell Processes

Enzymes

Anatomy & Physiology

3. Energy & Cell Processes

Enzymes

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Multiple Choice

Which of the following statements about enzymes is incorrect?

Most enzymes are proteins.

An enzyme is very specific in terms of the substrate to which it binds.

An enzyme lowers the activation energy of a chemical reaction.

Enzymes can be used to accelerate both anabolic and catabolic reactions.

An enzyme is consumed during the reaction it catalyzes.

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Verified step by step guidance

Understand the role of enzymes: Enzymes are biological catalysts that speed up chemical reactions without being consumed in the process.

Review the nature of enzymes: Most enzymes are proteins, and they are highly specific to the substrates they bind to, meaning they only catalyze specific reactions.

Examine the function of enzymes in reactions: Enzymes lower the activation energy required for a reaction, making it easier for the reaction to occur.

Consider the types of reactions enzymes are involved in: Enzymes can accelerate both anabolic (building up) and catabolic (breaking down) reactions.

Identify the incorrect statement: The statement 'An enzyme is consumed during the reaction it catalyzes' is incorrect because enzymes are not consumed; they remain unchanged after the reaction.