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

3. Energy & Cell Processes

Introduction to Cell Division

Anatomy & Physiology

3. Energy & Cell Processes

Introduction to Cell Division

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Multiple Choice

In what way do kinetochore microtubules facilitate the process of splitting the centromeres during cell division?

They remain static, providing a scaffold for other proteins to split the centromeres.

They shorten by depolymerizing at the kinetochore ends, pulling sister chromatids apart.

They generate a chemical signal that triggers the separation of centromeres.

They elongate to push the sister chromatids towards opposite poles.

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Verified step by step guidance

Understand the role of kinetochore microtubules in cell division: Kinetochore microtubules are crucial components of the mitotic spindle, which is responsible for separating sister chromatids during cell division.

Identify the process of depolymerization: Kinetochore microtubules facilitate the separation of sister chromatids by shortening. This shortening occurs through a process called depolymerization, where tubulin subunits are removed from the microtubules.

Focus on the location of depolymerization: The depolymerization occurs specifically at the kinetochore ends of the microtubules. This is where the microtubules are attached to the chromatids.

Explain the mechanical action: As the kinetochore microtubules depolymerize, they effectively pull the sister chromatids apart towards opposite poles of the cell. This mechanical action is crucial for the equal distribution of genetic material.

Clarify the incorrect options: The other options, such as remaining static, generating chemical signals, or elongating, do not accurately describe the mechanism by which kinetochore microtubules facilitate the separation of centromeres during cell division.