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Mitosis
The cell division
| Question | Answer |
|---|---|
| What is interphase, growth phase and synthesis phase? | Interphase is the longest in the cell cycle where the cell grows, replicates its DNA and prepares of cell division. |
| What is prophase | It is when centioles moves to opposite poles and nuclear envelope disappear and chromosomes coil up into visible structure |
| What is metaphase? | Sprindle fibres attach on to the chromosomes and line them up in the middle |
| What is anaphase? | Sprindle fibres retract and pull 1/2 of the chromosomes towards each centriole |
| What is Telophase? | Sprindle fibres are back in the centrioles and nuclear envelope starts to form back around both sets of chromosomes |
| What is cell check points? | There are 3 main checkpoints on the cell cycle where proteins determine whether the cell should divide or not. If the cell does not pass the signal check, it is repaired or destroyed. |
| What is cytokinesis? | It is when cell membrane pinches off in the middle and seperates into 2 daughter cells |
| What is apoptosis? | It is the process of cell suicide. Cells die when it is too old to function |
| What is cancer cells? | They can undergo mitosis unlimited number of times and they never die on its own and they do not function normally because its DNA becomes mutated by genetics, smoking etc. |
| What is tumor? | Cells that clump together due to an uncrontrollable urge to divide |
| What is growth phase? | Growth phase refers to the G1 and G2 where the cell is growing and developing its organelles. |
| What is synthesis phase? | Synthesis phase is when chromosomes replicate in the nucleus. |