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

Electron Transport Chain

Anatomy & Physiology

3. Energy & Cell Processes

Electron Transport Chain

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Multiple Choice

Which metabolic pathway generates a proton gradient during cellular respiration?

Glycolysis

Fermentation

Electron Transport Chain

Citric Acid Cycle

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Verified step by step guidance

Begin by understanding the role of cellular respiration, which is to convert biochemical energy from nutrients into adenosine triphosphate (ATP), and then release waste products.

Identify the main stages of cellular respiration: Glycolysis, Citric Acid Cycle (also known as Krebs Cycle), and Electron Transport Chain (ETC).

Recognize that the Electron Transport Chain is the final stage of cellular respiration, occurring in the inner mitochondrial membrane, where electrons are transferred through a series of complexes.

Understand that as electrons move through the Electron Transport Chain, protons (H⁺ ions) are pumped from the mitochondrial matrix to the intermembrane space, creating a proton gradient across the inner mitochondrial membrane.

This proton gradient is crucial for the process of chemiosmosis, where the flow of protons back into the mitochondrial matrix through ATP synthase drives the synthesis of ATP from ADP and inorganic phosphate.