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

What occurs during the prophase stage of mitosis?

The nuclear envelope re-forms around each set of chromosomes.

The sister chromatids are pulled apart to opposite poles of the cell.

The chromosomes align at the metaphase plate.

The chromatin condenses into visible chromosomes and the mitotic spindle begins to form.

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Verified step by step guidance

Begin by understanding that mitosis is the process of cell division that results in two genetically identical daughter cells. It consists of several stages: prophase, metaphase, anaphase, and telophase.

During prophase, the chromatin, which is the material that makes up chromosomes, condenses into visible chromosomes. This is crucial for the chromosomes to be properly segregated later in mitosis.

The mitotic spindle, a structure made of microtubules, begins to form during prophase. The spindle fibers are essential for moving and segregating the chromosomes during mitosis.

The nuclear envelope starts to break down in prophase, allowing the spindle fibers to access the chromosomes. This breakdown is necessary for the chromosomes to be moved to opposite poles of the cell in later stages.

Recognize that prophase sets the stage for the subsequent phases of mitosis, where chromosomes will align, separate, and eventually lead to the formation of two new nuclei in the daughter cells.