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

Dye injected into a plant cell might be able to enter an adjacent cell through __________.

a tight junction

a microtubule

a cell wall

a gap junction

plasmodesmata

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Verified step by step guidance

Understand the structure and function of plasmodesmata: Plasmodesmata are microscopic channels that traverse the cell walls of plant cells, allowing for transport and communication between adjacent cells.

Recognize the role of plasmodesmata in intercellular communication: These channels facilitate the movement of ions, molecules, and even some larger substances like proteins and RNA between plant cells.

Differentiate plasmodesmata from other cellular structures: Unlike tight junctions, microtubules, and gap junctions, plasmodesmata are specific to plant cells and are involved in direct cytoplasmic exchange.

Consider the context of dye movement: When dye is injected into a plant cell, it can move to adjacent cells through plasmodesmata due to their role in connecting the cytoplasm of neighboring cells.

Conclude why plasmodesmata is the correct answer: Given their function in facilitating intercellular transport, plasmodesmata are the structures through which dye can move from one plant cell to another.