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Biology Part C
Mitosis
| Question | Answer |
|---|---|
| How many parts are there to interphase? | There are 3 and they are: The growth phase, the synthesis phase, and the second growth phase |
| What is the Growth phase? | It is the first stage of the cell cycle where the cell is growing and developing its organelles |
| What is the Synthesis Phase? | It is the second phase of the cell cycle where the chromosomes replicate in the nucleus (duplicate) |
| What is Mitosis? | the process of the nucleus splitting in two |
| What is Prophase? | the first stage of mitosis where centrioles move to opposite poles, the nucleus envelope disappears, and chromosomes coil up into visible structures |
| What is metaphase? | the second phase of mitosis where spindle fibers attach on to the chromosomes and line them up in the middle |
| What is anaphase? | Third part of mitosis where spindle fibers retract and pull half the chromosomes toward each centriole |
| What is Telophase? | Fourth phase of mitosis where spindle fibers are back in the centrioles and the nucleus envelope starts to form back around both sets of chromosomes |
| What is Cytokinesis? | Fifth phase of mitosis where cell membrane pinched off in the middle and separated into 2 daughter cells (identical) |
| What are Cell check points? | there are 3 main points on the cell cycle where proteins determine wether the cell should divide or not and if the cell does not pass the signal check its repaired or destroyed. |
| What is apoptosis? | when cells die because they are too old to function (lysosomes does it to them) |
| What are cancer cells? | cells that can undergo mitosis an unlimited number of times |
| What is a tumor? | cells that clump together due to an uncontrollable urge to divide. They never die on their own and they do not function normally because its DNA has become mutated by genetics, smoking, or etc. |