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

2. Cell Chemistry & Cell Components

Introduction to Eukaryotic Organelles

Anatomy & Physiology

2. Cell Chemistry & Cell Components

Introduction to Eukaryotic Organelles

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Multiple Choice

Which of the following is true about microtubules?

Microtubules are primarily responsible for muscle contraction.

Microtubules are composed of actin filaments.

Microtubules are the smallest components of the cytoskeleton.

Microtubules are involved in cell division and intracellular transport.

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Verified step by step guidance

Begin by understanding the structure and function of microtubules. Microtubules are cylindrical structures made of tubulin proteins, not actin filaments.

Recognize the role of microtubules in the cell. They are involved in maintaining cell shape, facilitating intracellular transport, and are crucial during cell division, particularly in forming the mitotic spindle.

Differentiate microtubules from other cytoskeletal components. Microtubules are larger than actin filaments and intermediate filaments, making them the largest components of the cytoskeleton.

Understand the role of actin filaments and myosin in muscle contraction, which is not a function of microtubules. This helps eliminate the incorrect options.

Conclude that the correct statement about microtubules is their involvement in cell division and intracellular transport, aligning with their known functions in the cell.