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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

4. Tissues & Histology

Introduction to Tissues & Histology

Anatomy & Physiology

4. Tissues & Histology

Introduction to Tissues & Histology

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Multiple Choice

Which of the following best distinguishes a root hair from a tiny root, and what is the primary function of a root hair?

A root hair is a small extension of a root cell that increases surface area for water and nutrient absorption.

A root hair is a part of the root that stores nutrients for the plant.

A root hair is a small root that helps in the reproduction of the plant.

A root hair is a tiny root that grows from the main root to anchor the plant.

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Verified step by step guidance

Understand the structure of a root hair: A root hair is a tubular outgrowth of a root epidermal cell, not a separate root or a tiny root.

Differentiate between a root hair and a tiny root: A root hair is an extension of a single cell, whereas a tiny root is a multicellular structure.

Identify the primary function of a root hair: The main role of a root hair is to increase the surface area of the root for more efficient absorption of water and nutrients from the soil.

Clarify misconceptions: A root hair does not store nutrients, aid in reproduction, or anchor the plant like a root does.

Conclude with the correct distinction: A root hair is a small extension of a root cell that increases surface area for water and nutrient absorption, distinguishing it from other root structures.