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

Cell Junctions

Anatomy & Physiology

2. Cell Chemistry & Cell Components

Cell Junctions

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Multiple Choice

Which cellular appendage provides the ability to attach to surfaces and other cells?

Microvilli

Cilia

Flagella

Pili

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Verified step by step guidance

Begin by understanding the function of each cellular appendage listed in the options. Microvilli are primarily involved in increasing surface area for absorption, cilia are involved in movement and sensory functions, flagella are used for locomotion, and pili are used for attachment.

Focus on the function of pili. Pili are hair-like structures on the surface of bacterial cells that facilitate attachment to surfaces and other cells, which is crucial for processes like bacterial conjugation and colonization.

Consider the context in which pili are used. Pili are often found on bacterial cells and play a key role in adhering to host tissues, which is important for infection and biofilm formation.

Compare the function of pili with the other appendages. While microvilli, cilia, and flagella have distinct roles related to absorption, movement, and locomotion, pili are specifically adapted for attachment.

Conclude that the ability to attach to surfaces and other cells is a unique function of pili, distinguishing them from the other appendages listed.