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

Proteins

Anatomy & Physiology

2. Cell Chemistry & Cell Components

Proteins

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Multiple Choice

What is the most abundant structural protein in the human body?

Elastin

Collagen

Actin

Keratin

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Verified step by step guidance

Begin by understanding the role of structural proteins in the human body. Structural proteins are essential for providing support and strength to tissues and organs.

Identify the key structural proteins mentioned in the problem: Elastin, Collagen, Actin, and Keratin. Each of these proteins has distinct functions and properties.

Collagen is known for its abundance and role in providing tensile strength to connective tissues such as skin, tendons, and ligaments. It is the most abundant protein in the human body.

Elastin is another structural protein, but it is primarily responsible for elasticity in tissues, allowing them to resume their shape after stretching or contracting.

Actin and Keratin are also structural proteins, but they serve different functions. Actin is involved in muscle contraction and cellular movement, while Keratin is a key component of hair, nails, and the outer layer of skin.