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

Which of the following is the site of ATP binding and hydrolysis?

Tropomyosin

Myosin head

Actin filament

Troponin

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Verified step by step guidance

Understand the role of ATP in muscle contraction: ATP is crucial for muscle contraction as it provides the energy needed for the process.

Identify the components involved in muscle contraction: The key proteins involved are actin, myosin, tropomyosin, and troponin.

Focus on the myosin head: The myosin head is the part of the myosin molecule that interacts with actin filaments during muscle contraction.

Recognize the function of the myosin head: The myosin head binds to ATP and hydrolyzes it to ADP and inorganic phosphate, which provides the energy for the myosin head to change its conformation and pull on the actin filament.

Conclude that the myosin head is the site of ATP binding and hydrolysis: This is where the chemical energy from ATP is converted into mechanical energy for muscle contraction.