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

Keratin and collagen are examples of which class of proteins?

Enzymatic proteins

Transport proteins

Structural proteins

Hormonal proteins

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Verified step by step guidance

Begin by understanding the function of keratin and collagen in the body. Keratin is a key structural material making up the outer layer of human skin, hair, and nails, while collagen is the main structural protein found in skin and other connective tissues.

Recognize the different classes of proteins and their functions: Enzymatic proteins catalyze biochemical reactions, Transport proteins move substances across cell membranes, Hormonal proteins regulate physiological processes, and Structural proteins provide support and shape to cells and tissues.

Identify the characteristics of structural proteins. These proteins are responsible for maintaining the integrity and shape of cells and tissues, often forming fibrous structures.

Compare the functions of keratin and collagen with the characteristics of structural proteins. Both keratin and collagen contribute to the physical structure and resilience of tissues, aligning with the role of structural proteins.

Conclude that keratin and collagen are examples of structural proteins, as they primarily serve to provide support and structure to various parts of the body.