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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Multiple Choice

Which of these processes occurs during a cell's first gap (G1) phase?

Chromosome segregation

DNA replication

Cell growth and increase in organelle number

Cytokinesis

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Verified step by step guidance

Understand the cell cycle phases: The cell cycle consists of interphase (G1, S, G2) and mitotic phase (M). The G1 phase is the first gap phase following mitosis.

Identify the activities in the G1 phase: During the G1 phase, the cell grows in size and synthesizes mRNA and proteins necessary for DNA replication. This is a period of cellular growth and increase in organelle number.

Differentiate between the processes: Chromosome segregation occurs during mitosis, DNA replication occurs in the S phase, and cytokinesis is the final step of cell division.

Focus on cell growth: In the G1 phase, the cell is primarily focused on growth and preparing for DNA replication, which involves increasing the number of organelles and cellular components.

Conclude with the correct process: The correct process occurring during the G1 phase is cell growth and increase in organelle number, as the cell prepares for the subsequent phases of the cell cycle.