Creado por Azlan Naeem
hace más de 5 años
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Pregunta | Respuesta |
What are the different stages in the cell cycle? | Prophase, Anaphase, Metaphase, Telophase |
Order the stages that occur during the cell cycle from first step to last. | Interphase Prophase Metaphase Anaphase Telophase Cytokinesis |
What happens duting mitosis? | Identical daughter cells are produced through a methid called cell division that produces diploid cells. |
What happens during interphase? | ▪DNA replicates ▪some organells increase in number eg mitochondria & chloroplasts ▪protein synthesis |
Why is Mitosis important? | Growth Repair Replace |
What happens during prophase? | 1.Parent cell chromosomes condense 2. Mitotic spindle forms 3. Nucleolus disappears |
What happens during metaphase? | chromosomes line up in the middle |
What happens during anaphase? | chromosomes pull away to each side of the cell centromeres split into two and certain spindle tubers begin to elongate the cell |
What happens during telophase? | ▪chromosomes arrive at opposite poles and start decondesing ▪ nuclear envelopes surrounds each set of chromosomes ▪mitotic spindle breaks down |
What happens during cytokinesis? | n |
What type of cells do not undergo mitosis? | Nerve and sex cells |
What would happen if cells were in mitosis longer than they were in interphase? | It would result in uncontrolled cell division which could lead to cancer tumours forming |
What percentage of the cell cycle are interphase and mitosis? | 90% interphase 10% mitosis |
In humans, how many chromosomes should be in each diploid cell after mitosis? | 46 |
Why is mitosis important for organisms? | 1. For growth 2. For repair 3. Asexual reproduction |
Why do organisms rely on asexual reproduction? | It is easier, faster, requires less energy, no need to find a mate, results in a fully matured organism that can care for itself |
How do cancers grow? | Cancers occur when cell division goes wrong. This causes cells to grow out of control, which form a tumour. |
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