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

In the process of chemiosmosis, where do the hydrogen ions (H+) that drive ATP synthase primarily originate from?

The Krebs cycle in the mitochondrial matrix

The electron transport chain in the mitochondria

The breakdown of glucose in glycolysis

The splitting of water molecules during photosynthesis

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Verified step by step guidance

Understand that chemiosmosis is a process that occurs in the mitochondria during cellular respiration, specifically in the electron transport chain.

Recognize that the electron transport chain is located in the inner mitochondrial membrane and is responsible for creating a proton gradient.

Identify that as electrons are passed along the chain, energy is released and used to pump hydrogen ions (H+) from the mitochondrial matrix into the intermembrane space, creating a high concentration of H+ ions.

Acknowledge that this gradient of hydrogen ions across the membrane is what drives ATP synthase, an enzyme that synthesizes ATP as H+ ions flow back into the matrix through it.

Conclude that the primary source of the hydrogen ions that drive ATP synthase in chemiosmosis is the electron transport chain in the mitochondria, not the Krebs cycle, glycolysis, or photosynthesis.