08. Cell division Flashcards
What are the 2 phases of cell division?
Interphase and M-Phase
List the stages of interphase
G1, S, G2 Stages
Explain what happens in the G1 stage.
- Cell grows in size
- Create proteins and organelles needed for DNA synthesis
Explain what happens in the S stage.
- Synthesis (replication) of its DNA
Explain what happens in the G2 stage.
- Preparing/rearranging the cell for mitosis
List the main stages in the M-Phase.
- Mitosis
- Cytokinesis
List (in order) the stages of Mitosis.
- Prophase
- Metaphase
- Anaphase
- Telophase
Explain the process of Prophase
2 copies of DNA wind up tightly into chromosomes.
Explain the process of Metaphase
Chromosomes line up along the equator of the cell.
Explain the process of Anaphase
Chromosomes are pulled apart.
Explain the process of telophase
- Chromosomes move to opposite ends (poles) of the cell.
- Nucellar membrane forms in the centre of the cell.
Explain the process of Cytokinesis
The psychical separation of the cytoplasm of a cell.
What is created once a cell divides?
2 daughter cells
3 Requirements for cell division
A cell must:
- Synthesis 2 sets of DNA
- Grow in size
- Psychically seperate