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

Cell Cycle Regulation

Anatomy & Physiology

3. Energy & Cell Processes

Cell Cycle Regulation

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Multiple Choice

What is the purpose of cell cycle checkpoints?

To coordinate a cell’s specialization for its role in particular tissues.

To prevent the cell from pausing the cell cycle when problems are detected.

To ensure that cells containing errors in their DNA do not undergo apoptosis.

To coordinate movement of vesicles through the cell.

To ensure that a cell only proceeds to the next phase in the cell cycle if it is ready.

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Verified step by step guidance

Understand the concept of the cell cycle: The cell cycle is a series of phases that a cell goes through to divide and produce new cells. It includes phases such as interphase (G1, S, G2) and mitotic phase (M).

Learn about cell cycle checkpoints: Checkpoints are control mechanisms in the cell cycle that ensure the cell is ready to proceed to the next phase. They help maintain the integrity of the cell's genetic material.

Identify the main checkpoints: The primary checkpoints are the G1 checkpoint, G2 checkpoint, and the M checkpoint. Each checkpoint assesses different criteria to ensure the cell is prepared for the next phase.

Explore the purpose of checkpoints: Checkpoints prevent the progression of the cell cycle if there are errors or damage in the DNA, ensuring that only healthy cells divide. This helps prevent mutations and cancer.

Clarify the correct answer: The purpose of cell cycle checkpoints is to ensure that a cell only proceeds to the next phase in the cell cycle if it is ready, thereby maintaining cellular integrity and function.