Table of contents

1. Introduction to Anatomy & Physiology5h 43m
2. Cell Chemistry & Cell Components12h 36m
3. Energy & Cell Processes10h 6m
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 Blood3h 22m
18. The Heart3h 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 Balance37m
27. The Reproductive System2h 5m
28. Human Development1h 21m
29. Heredity3h 32m

3. Energy & Cell Processes

Introduction to Cellular Respiration

Anatomy & Physiology

3. Energy & Cell Processes

Introduction to Cellular Respiration

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Multiple Choice

Which energy source provides high yields of ATP necessary for prolonged-duration exercise?

Oxidative phosphorylation

Glycolysis

Fermentation

Substrate-level phosphorylation

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Verified step by step guidance

Understand the context: The question is about energy sources that provide ATP for prolonged-duration exercise. ATP (adenosine triphosphate) is the energy currency of the cell, and different processes generate ATP in varying amounts and durations.

Identify the processes: The options given are oxidative phosphorylation, glycolysis, fermentation, and substrate-level phosphorylation. Each of these processes contributes to ATP production in different ways.

Oxidative phosphorylation: This process occurs in the mitochondria and involves the electron transport chain and chemiosmosis. It is highly efficient and produces a large amount of ATP, making it suitable for prolonged exercise.

Glycolysis: This is the breakdown of glucose into pyruvate, producing a small amount of ATP quickly. It is anaerobic and not as efficient as oxidative phosphorylation for long-term energy needs.

Fermentation and substrate-level phosphorylation: Fermentation is an anaerobic process that allows glycolysis to continue by regenerating NAD+, but it does not produce additional ATP. Substrate-level phosphorylation occurs during glycolysis and the Krebs cycle, producing ATP directly but in smaller amounts compared to oxidative phosphorylation.