Table of contents

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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

24. Metabolism and Nutrition

Cellular Respiration: Electron Transport Chain

Anatomy & Physiology

24. Metabolism and Nutrition

Cellular Respiration: Electron Transport Chain

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Multiple Choice

ATP is produced through oxidative phosphorylation when which of the following occurs?

NADH and FADH2 are oxidized in the cytosol.

Electrons are transferred through the electron transport chain, creating a proton gradient.

Glucose is broken down into pyruvate in the cytoplasm.

Carbon dioxide is fixed into glucose during the Calvin cycle.

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Verified step by step guidance

Understand that ATP production through oxidative phosphorylation occurs in the mitochondria, not the cytosol.

Recognize that NADH and FADH2 are crucial electron carriers that donate electrons to the electron transport chain (ETC) located in the inner mitochondrial membrane.

Learn that as electrons are transferred through the ETC, energy is released, which is used to pump protons (H+) across the mitochondrial membrane, creating a proton gradient.

Identify that the proton gradient generates a chemiosmotic potential, which drives ATP synthesis as protons flow back into the mitochondrial matrix through ATP synthase.

Note that the breakdown of glucose into pyruvate occurs in glycolysis, and carbon fixation into glucose is part of the Calvin cycle, which are not directly related to oxidative phosphorylation.