Table of contents

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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

2. Cell Chemistry & Cell Components

Introduction to the Cytoskeleton

Anatomy & Physiology

2. Cell Chemistry & Cell Components

Introduction to the Cytoskeleton

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Multiple Choice

Which of the following proteins is not a long filament found in the cytoskeleton?

Keratin

Myosin

Tubulin

Actin

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Verified step by step guidance

Understand the role of the cytoskeleton: The cytoskeleton is a network of fibers that provides structural support to cells, helps in cell movement, and organizes the cell's components.

Identify the types of filaments in the cytoskeleton: The cytoskeleton is composed of three main types of filaments: microfilaments, intermediate filaments, and microtubules.

Recognize the proteins associated with each filament type: Actin is a major component of microfilaments, tubulin is the building block of microtubules, and keratin is a type of intermediate filament.

Consider the function of myosin: Myosin is a motor protein that interacts with actin filaments to facilitate muscle contraction and cellular movement, but it is not a structural filament itself.

Conclude which protein is not a filament: Based on the understanding of cytoskeletal components, myosin is not a filament but rather a motor protein that works with actin filaments.