Stages of the cell cycle
- Created by: caitlinca
- Created on: 18-03-17 12:36
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- Stages of the cell cycle
- Interphase
- Stages
- S - synthesis stage
- DNA is replicated in the nucleus
- G1 - the first growth phase
- Proteins from which organelles are synthesised are produced + organelles replicate
- The cell increases in size
- Proteins from which organelles are synthesised are produced + organelles replicate
- G2 - the second growth phase
- The cell continues to increase in size
- Energy stores are increased and duplicated DNA is checked for errors
- The cell continues to increase in size
- S - synthesis stage
- During interphase:
- DNA is replicated and checked for errors in the nucleus
- Protein synthesis occurs in the cytoplasm
- Mitochondria grow and divide, increasing in number in the cytoplasm
- Chloroplasts grow + divide in plant and algal cell cytoplasm, increasing in number
- The normal metabolic processes of cells occur
- Summary
- Interphase is long periods of growth between cell divisions
- It is a very active stage of the cell cycle - the cell carries out all of its major functions such as producing hormones
- Stages
- Mitotic phase
- Mitosis
- When the nucleus divides
- Cytokinesis
- When the cytoplasm divides and two cells are produced
- G0
- When the cell leaves the cycle temporarily or permanently
- Reasons for this stage
- Differentiation
- A cell becomes differentiated so is no longer able to carry out its function
- It will carry out its function indefinitely + not enter the cell cycle again
- A cell becomes differentiated so is no longer able to carry out its function
- Damage to the DNA
- A damaged cell can no longer divide and enters a period of permanent cell arrest
- Differentiation
- Aging
- As you age the cells in your body increases
- Untitled
- As you age the cells in your body increases
- Mitosis
- Interphase
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