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 of the following pathways are commonly used to produce ATP during skeletal muscle contraction?

Glycolysis

Photosynthesis

Electron transport chain

Fermentation

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Verified step by step guidance

Understand that ATP (adenosine triphosphate) is the primary energy currency in cells, including skeletal muscle cells, and is crucial for muscle contraction.

Recognize that glycolysis is a metabolic pathway that breaks down glucose to pyruvate, producing a small amount of ATP in the process. This pathway occurs in the cytoplasm and does not require oxygen, making it an anaerobic process.

Identify that the electron transport chain is a series of protein complexes located in the inner mitochondrial membrane. It is the final stage of aerobic respiration and produces a significant amount of ATP by transferring electrons from NADH and FADH2 to oxygen.

Note that photosynthesis is a process used by plants, algae, and some bacteria to convert light energy into chemical energy stored in glucose. It is not involved in ATP production during skeletal muscle contraction.

Understand that fermentation is an anaerobic process that allows glycolysis to continue by regenerating NAD+ from NADH. It produces ATP indirectly by allowing glycolysis to proceed, but it is not a primary pathway for ATP production in skeletal muscles during contraction.