The Cell Cycle Flashcards
What are the 3 main stages in the cell cycle?
-Interphase
-Mitosis
-Cytokinesis
What are the 3 phases of the Interphase?
-1st Growth Phase (G1)
-Synthesis Phase
-2nd Growth Phase (G2)
What are the 4 stages in Mitosis?
-Prophase
-Metaphase
-Anaphase
-Telophase
What happens in Interphase in the G1 phase?
-Organelles such as Mitochondria and Chloroplasts grow and Divide.
-Protein Synthesis
What happens in Interphase in the S phase?
DNA is replicated
What happens in Interphase in the G2 phase?
Checked for errors.
What functions occur in the Interphase?
Normal Metabolic Functions
What are the 2 main stages in Cell Division?
Mitosis
Cytokinesis
What happens in Mitosis?
Nucleus divides
What happens in Cytokinesis?
Cytoplasm and Membrane Separate.
What happens in the G0 phase?
-Where the cell comes out of the cell cycle.
-Can be permanent or temporary.
What are the 2 reasons for G0?
-Differentiation
-DNA has become damaged.
Why does G0 occur due to Differentiation?
-A cell becomes specialised to carry out a particular function.
-This can make it unable to divide, it will carry out its function indefinitely.
Why does G0 occur due to DNA becoming damaged?
-Cell Division is no longer viable. It enters a state of permanent cell arrest.
-Most cells will do this as they only divide a set number of times.
What are the 3 checkpoints in the Cell Cycle?
-G1 Checkpoint
-G2 Checkpoint
-Spindle Assembly Checkpoint