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

Which statement is correct regarding internal and external respiration?

Internal respiration takes place in the alveoli of the lungs.

External respiration occurs within the mitochondria of cells.

Internal respiration involves the exchange of gases between the blood and the body's cells.

External respiration is the process of oxygen being used by cells to produce energy.

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Verified step by step guidance

Understand the definitions: Internal respiration refers to the exchange of gases between the blood and the body's cells, while external respiration involves the exchange of gases between the air in the alveoli and the blood in the pulmonary capillaries.

Identify the location of each process: Internal respiration occurs at the cellular level throughout the body, whereas external respiration takes place in the lungs.

Clarify the processes involved: In internal respiration, oxygen is delivered to the cells and carbon dioxide is picked up from the cells. In external respiration, oxygen is taken into the blood from the alveoli, and carbon dioxide is expelled from the blood into the alveoli.

Correct the misconceptions: Internal respiration does not occur in the alveoli; it occurs in the tissues. External respiration does not occur in the mitochondria; it occurs in the lungs.

Summarize the correct statements: Internal respiration involves the exchange of gases between the blood and the body's cells, and external respiration involves the exchange of gases between the alveoli and the blood.