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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

3. Energy & Cell Processes

Review of Aerobic Cellular Respiration

Anatomy & Physiology

3. Energy & Cell Processes

Review of Aerobic Cellular Respiration

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Multiple Choice

Water is one of the products of aerobic cellular respiration. What is the source of the oxygen atom utilized to create the water molecules?

Carbon dioxide (CO₂).

Glucose (C₆H₁₂O₆).

Oxygen gas (O₂).

Pyruvate (C₃H₃O₃^–).

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Verified step by step guidance

Understand the process of aerobic cellular respiration, which involves glycolysis, the citric acid cycle, and the electron transport chain.

Recognize that during the electron transport chain, electrons are transferred through a series of proteins embedded in the inner mitochondrial membrane.

Identify that oxygen gas (O2) acts as the final electron acceptor in the electron transport chain.

Realize that when oxygen gas (O2) accepts electrons, it combines with protons (H+) to form water (H2O) molecules.

Conclude that the source of the oxygen atom in the water molecules produced during aerobic respiration is the oxygen gas (O2) that is inhaled and utilized in the electron transport chain.