Powerpoint mitosis 1
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The document discusses cell division through mitosis. It begins with definitions of mitosis and describes it as the process where a cell divides into two identical daughter cells through five main phases: interphase, prophase, metaphase, anaphase and telophase. Key events of each phase are outlined, including chromosome condensation, formation of the mitotic spindle, alignment of chromosomes, separation of chromatids, and reformation of nuclei. The document also notes that cytokinesis occurs after telophase to separate the cytoplasmic contents between the two daughter cells. Examples of acronyms used to recall the order of mitosis are provided.
Powerpoint mitosis 1
- 3. Have your body changed in the pass six months? Tall/Weight
- 5. Did your hair grow?
- 7. Broken a bone recently?
- 8. Wound how does your body repair itself?
- 10. MitosisDefinition:To create two identical daughter cells that are genetically identical to the parent cells
- 11. Q: What kind of cells would perform mitosis?A: Somatic cells (all body cells except gamete cells)
- 13. Acronym for MITOSISIPMAT (C)InterphaseProphaseMetaphaseAnaphaseTelophase(Cytokinesis)
- 14. IPMAT (C) IPMAN 息InterphaseProphaseMetaphaseAnaphaseTelophase(Cytokinesis)
- 15. Mitosis Video 1
- 16. Chromosome in MitosisHomologous chromosome and sister chromatids
- 17. AnaphaseCentromere splits and homologus chromosomes go to opposite poles of cell
- 19. Interphase
- 20. InterphaseInterphase is not part of mitosis
- 21. It involves synthesis of new organelles (G1), replication of chromosome (S) and synthesis of proteins necessary for mitosis (G2).
- 22. Chromosomes appears as thread-like structures called chromatin.Prophase
- 23. Prophase Chromatids (replicated chromosomes condense and become visible in a light microscope)
- 24. The nucleolus disappears
- 25. Paired centrioles (centrosomes) move opposite ends of the cell
- 26. Spindle forms
- 27. Asters (short microtubules radiating from centrioles) formMetaphase
- 28. Metaphase Sister chromatids line up at the spindle equator
- 29. Each centromere attaches itself to the spindle fibre
- 30. At the end of metaphase, the centromeres divide.Anaphase
- 31. Anaphase The separated chromatids, now called chromosomes are pulled apart towards the opposite poles by the contraction of spindle fibres
- 32. Anaphase is completed when chromosomes arrive at the polesTelophase
- 33. TelophaseChromosomes reach the poles of the cell and cannot be seen clearly
- 34. The spindle fibres disappear and centrioles replicate
- 35. Nuclear membrane re-forms around chromosomes and the nucleolus reappears in each nucleus
- 36. Telophase may lead straight into cytokinesisCytokinesis Cytokinesis is the separation of the parent cells cytoplasm at the end of a mitosis
- 37. Cytokinesis in animal and plant cells are different
- 38. In animal cell:
- 39. CLEAVAGE FURROW (division furrow)
- 40. Group activity
- 42. Acronym for MITOSISIPMAT (C)InterphaseProphaseMetaphaseAnaphaseTelophase(Cytokinesis)
- 43. IPMAT (C) IPMAN 息InterphaseProphaseMetaphaseAnaphaseTelophase(Cytokinesis)
- 44. Interphase
- 45. Prophase
- 46. Metaphase
- 47. Anaphase
- 48. Telophase
- 49. Mitosis Video 1
- 50. Mitosis Video 2