Cell Cycle
The cell cycle consists of a series of stages that a cell goes through to grow, replicate its DNA, and divide. The steps are divided into two main phases: Interphase (the preparation phase) and Mitosis (M phase) (the division phase).
1. Interphase
Interphase is the longest part of the cell cycle, where the cell prepares for division. During interphase, DNA replication occurs and the cell prepares for mitosis.
2. Prophase
- Chromosomes condense and become visible.
- The nuclear envelope begins to break down.
- Spindle fibers form from the centrioles.
3. Metaphase
- Chromosomes align in the center of the cell (the metaphase plate).
- Spindle fibers attach to the centromeres of the chromosomes.
4. Anaphase
- Sister chromatids are pulled apart by the spindle fibers.
- Chromatids move toward opposite poles of the cell.
5. Telophase
- Chromosomes reach the poles and begin to decondense.
- The nuclear envelope reforms around each set of chromosomes.
- Spindle fibers disassemble.
- Cytokinesis begins - cytoplasms divides, resulting in two identical daughter cells
Task
1. Cut out each of the following phases of the cell cycle and arrange them into the correct order.
2. Label each phase
3. Label cell structures (chromatin, chromatid, centriole, spindle, centromere)