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

Proteins

Anatomy & Physiology

2. Cell Chemistry & Cell Components

Proteins

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Multiple Choice

What protein provides flexibility and strength to connective tissues?

Elastin

Keratin

Collagen

Actin

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Verified step by step guidance

Understand the role of connective tissues: Connective tissues support, bind, and protect organs and other tissues in the body. They are composed of various proteins that contribute to their function.

Identify the key proteins in connective tissues: The main proteins found in connective tissues include collagen, elastin, keratin, and actin. Each has distinct properties and functions.

Focus on collagen: Collagen is the most abundant protein in connective tissues. It provides tensile strength, which is crucial for maintaining the structural integrity of tissues.

Differentiate between collagen and elastin: While elastin provides elasticity, allowing tissues to stretch and return to their original shape, collagen is responsible for strength and rigidity.

Conclude with collagen's role: Collagen's ability to form strong fibers makes it essential for the durability and resilience of connective tissues, ensuring they can withstand mechanical stress.