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

Phases of Mitosis

Anatomy & Physiology

3. Energy & Cell Processes

Phases of Mitosis

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Multiple Choice

Where do the microtubules of the spindle originate during mitosis in animal cells?

Golgi apparatus

Centrosome

Ribosome

Nucleolus

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Understand the role of microtubules in mitosis: Microtubules are essential components of the spindle apparatus, which is responsible for separating chromosomes during cell division.

Identify the structure responsible for organizing microtubules: In animal cells, the centrosome is the primary microtubule-organizing center (MTOC). It plays a crucial role in forming the spindle apparatus during mitosis.

Recognize the components of the centrosome: The centrosome consists of two centrioles surrounded by a mass of proteins known as the pericentriolar material, which helps in microtubule nucleation.

Differentiate between the given options: The Golgi apparatus, ribosome, and nucleolus have different functions unrelated to microtubule organization. The Golgi apparatus is involved in protein modification and transport, ribosomes are responsible for protein synthesis, and the nucleolus is involved in ribosomal RNA synthesis.

Conclude that the centrosome is the correct answer: Based on the understanding of cell structures and their functions, the centrosome is the origin of microtubules during mitosis in animal cells.