1) Diagrams B and E show the end of cell division because they depict two separate daughter cells, each with its own nucleus and cytoplasm, indicating cytokinesis has completed.
2) The structures seen inside the nucleus (in diagrams A and D) are chromatin (uncoiled DNA) or chromosomes (condensed DNA), which carry genetic information.
3) These are animal cells. They lack a cell wall and have centrioles (visible as small structures near the poles in diagrams A, C, E, F). Additionally, cytokinesis occurs via cleavage furrow (pinching in of the cell membrane), as shown in diagram B, which is characteristic of animal cells.
4) Correct sequence: D → A → F → C → E → B
- D: Interphase (nucleus intact, chromatin visible)
- A: Prophase (chromosomes condense, nuclear envelope breaks down)
- F: Metaphase (chromosomes align at equator)
- C: Anaphase (sister chromatids separate to opposite poles)
- E: Telophase (chromosomes decondense, nuclear envelopes reform — this phase occurs twice in the set, but E shows the final separation into two cells)
- B: Cytokinesis (two distinct daughter cells formed)
5) Mitosis is important because:
- It allows for growth and development by increasing the number of cells in an organism.
- It enables tissue repair and regeneration by replacing damaged or dead cells.
Parent Tip: Review the logic above to help your child master the concept of cell cycle worksheet.
