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

ATP

Anatomy & Physiology

3. Energy & Cell Processes

ATP

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Multiple Choice

Where does the F1 subunit of ATP synthase get its energy to catalyze the synthesis of ATP during chemiosmosis?

From the flow of protons through the F0 subunit

From the oxidation of NADH

From the breakdown of glucose

From the direct absorption of sunlight

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Verified step by step guidance

Understand the structure of ATP synthase: ATP synthase is a complex enzyme composed of two main parts, the F0 and F1 subunits. The F0 subunit is embedded in the mitochondrial membrane, while the F1 subunit protrudes into the mitochondrial matrix.

Learn about chemiosmosis: Chemiosmosis is the process by which ATP is produced in the mitochondria. It involves the movement of protons (H+) across the mitochondrial membrane, creating a proton gradient.

Explore the role of the F0 subunit: The F0 subunit forms a channel through which protons flow back into the mitochondrial matrix. This flow of protons is driven by the proton gradient established during electron transport.

Connect the proton flow to ATP synthesis: As protons flow through the F0 subunit, they cause the F1 subunit to rotate. This mechanical energy is used by the F1 subunit to catalyze the conversion of ADP and inorganic phosphate (Pi) into ATP.

Identify the source of energy for the F1 subunit: The energy for ATP synthesis by the F1 subunit comes from the flow of protons through the F0 subunit, not from the oxidation of NADH, breakdown of glucose, or direct absorption of sunlight.