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 the Cell Cycle

Anatomy & Physiology

3. Energy & Cell Processes

Introduction to the Cell Cycle

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2:45 minutes

Problem 8

Textbook Question

The phase of mitosis during which centrioles reach the poles and chromosomes attach to the spindle is
a. Anaphase
b. Metaphase
c. Prophase
d. Telophase

Verified step by step guidance

Understand the phases of mitosis: Mitosis is divided into prophase, metaphase, anaphase, and telophase. Each phase has distinct characteristics and events.

Recall the role of centrioles and spindle fibers: Centrioles are structures that help organize spindle fibers, which are essential for chromosome movement during mitosis.

Identify the phase where centrioles reach the poles: During prophase, centrioles begin migrating to opposite poles of the cell, and spindle fibers start forming.

Determine when chromosomes attach to spindle fibers: Chromosomes attach to spindle fibers during metaphase, aligning at the cell's equatorial plane.

Match the description in the question to the correct phase: Based on the information provided, the phase where centrioles reach the poles and chromosomes attach to the spindle is metaphase.

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Key Concepts

Here are the essential concepts you must grasp in order to answer the question correctly.

Mitosis

Mitosis is the process of cell division that results in two genetically identical daughter cells. It consists of several phases: prophase, metaphase, anaphase, and telophase. Each phase has distinct events that ensure proper segregation of chromosomes, which is crucial for maintaining genetic stability in organisms.

Metaphase

Metaphase is the stage of mitosis where chromosomes align at the cell's equatorial plane, known as the metaphase plate. During this phase, spindle fibers attach to the centromeres of the chromosomes, ensuring that each sister chromatid will be pulled to opposite poles during the next phase, anaphase. This alignment is critical for accurate chromosome separation.

Spindle Apparatus

The spindle apparatus is a structure made of microtubules that orchestrates the movement of chromosomes during mitosis. It forms during prophase and is responsible for attaching to chromosomes at their centromeres, guiding them to align in metaphase, and pulling them apart during anaphase. Proper function of the spindle is essential for successful cell division.

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The presence of an epiphyseal plate indicates that:

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Which of the following represents the correct sequence of zones in the epiphyseal plate from the epiphysis to the diaphysis?

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At the beginning of spermatogenesis, cells are called __________ and contain 46 chromosomes.

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Textbook Question

Two examples of chemotherapeutic drugs (drugs used to treat cancer) and their cellular actions are listed below. Explain why each drug could be fatal to a cell. • Vincristine (brand name Oncovin): damages the mitotic spindle • Doxorubicin (Adriamycin): binds to DNA and blocks mRNA synthesis

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