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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

Introduction to Cellular Respiration

Anatomy & Physiology

3. Energy & Cell Processes

Introduction to Cellular Respiration

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Multiple Choice

Which of the following is the main fuel used to generate ATP about 15 seconds into exercise?

Fatty acids

Lactate

Glucose

Amino acids

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Verified step by step guidance

Understand that ATP (adenosine triphosphate) is the primary energy currency of the cell, used to power various cellular processes.

Recognize that during the initial phase of exercise, the body relies on immediate energy sources to quickly generate ATP.

Identify that glucose is a readily available source of energy that can be rapidly metabolized through glycolysis to produce ATP.

Consider that fatty acids and amino acids are not the primary sources of energy during the first few seconds of exercise due to their slower metabolic pathways.

Conclude that glucose is the main fuel used to generate ATP about 15 seconds into exercise, as it can be quickly broken down to meet the immediate energy demands.