Table of contents

1. Overview of Cell Biology2h 49m
2. Chemical Components of Cells1h 14m
3. Energy1h 33m
4. DNA, Chromosomes, and Genomes2h 31m
5. DNA to RNA to Protein2h 31m
6. Proteins1h 36m
7. Gene Expression1h 42m
8. Membrane Structure1h 4m
- The Lipid Bilayer
  38m
- Membrane Proteins
  25m
9. Transport Across Membranes1h 52m
10. Anerobic Respiration1h 5m
11. Aerobic Respiration1h 11m
12. Photosynthesis52m
13. Intracellular Protein Transport2h 18m
14. Cell Signaling1h 28m
15. Cytoskeleton and Cell Movement1h 39m
16. Cell Division3h 5m
17. Meiosis and Sexual Reproduction50m
18. Cell Junctions and Tissues48m
19. Stem Cells13m
- Stem Cells
  13m
20. Cancer44m
21. The Immune System1h 6m
22. Techniques in Cell Biology1h 41m

16. Cell Division

G1 Phase

Cell Biology

16. Cell Division

G1 Phase

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Multiple Choice

Which of the following statements best describes what happens during the G1 phase of the cell cycle?

The cell grows and carries out normal metabolic functions while preparing for DNA replication.

The cell divides its cytoplasm and organelles to form two daughter cells.

The cell replicates its DNA to produce two identical sets of chromosomes.

The cell condenses its chromosomes and aligns them at the metaphase plate.

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Verified step by step guidance

Understand the cell cycle phases: The cell cycle consists of interphase (G1, S, and G2 phases) and the mitotic phase (M phase). Each phase has specific functions and events.

Focus on the G1 phase: The G1 phase is the first phase of interphase. During this phase, the cell grows in size, synthesizes proteins, and carries out normal metabolic activities. It also prepares for DNA replication by producing necessary enzymes and molecules.

Eliminate incorrect options: The statement 'The cell divides its cytoplasm and organelles to form two daughter cells' describes cytokinesis, which occurs during the M phase, not G1. The statement 'The cell replicates its DNA to produce two identical sets of chromosomes' describes the S phase, not G1. The statement 'The cell condenses its chromosomes and aligns them at the metaphase plate' describes metaphase, which is part of the M phase.

Identify the correct description: The correct statement for the G1 phase is 'The cell grows and carries out normal metabolic functions while preparing for DNA replication.' This aligns with the known functions of the G1 phase.

Conclude the reasoning: Based on the understanding of the cell cycle and the elimination of incorrect options, the correct description of the G1 phase is the one that highlights cell growth, metabolic activity, and preparation for DNA replication.