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L.N Makhathini
MITOSIS
GRADE 10
Mitosis
What is Mitosis?
Mitosis defined
 Mitosis is the process, in the cell cycle, by which a
cell duplicates into two genetically alike
(identi...
Important Cell Structures
Involved in Mitosis
 Chromatid – each strand of a duplicated
chromosome
 Centromere – the area...
REMEMBER!
Interphase
Prophase
Metaphase
Anaphase
Telophase
Cytokinesis
IPMATC
Stages of Mitosis
- INTERPHASE
- PROPHASE
- METAPHASE
- ANAPHASE
- TELOPHASE
- CYTOKINESIS
Interphase
 The cell builds up energy
 It grows and copies its chromosomes in preparation for
cell division.
Prophase
 During prophase the duplicated
chromosome condenses and
becomes visible.
 The centrioles move to
opposite side...
Metaphase
 the centromeres of the duplicated
chromosomes line up across the
center of the cell.
 The spindle fibers conn...
Anaphase
 the centromeres are pulled apart
and the chromatids separate to
become individual chromosomes.
 The chromosome...
Telophase
 the chromosomes spread out
into a tangle of chromatin.
 A nuclear envelope re-forms
around each cluster of
ch...
Cytokinesis
 How do daughter cells split apart after mitosis?
 Cytokinesis completes the process of cell division – it s...
 Cytokinesis is the division of the cytoplasm.
 The process of cytokinesis is different in animal and plant cells.
Cytok...
Cytokinesis in Animal
Cells The cell membrane is drawn in until the cytoplasm is pinched into
two equal parts.
 Each par...
Cytokinesis in Plant Cells
 In plants, the cell membrane is not flexible enough to
draw inward because of the rigid cell ...
The Stages of the Cell
Cycle
Resources
-Biology 7th Edition. 2005. Campbell and Reece
- Google Images
http://images.google.com/imghp?hl=en&tab=
wi
 Jo...
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  1. 1. L.N Makhathini MITOSIS GRADE 10
  2. 2. Mitosis What is Mitosis?
  3. 3. Mitosis defined  Mitosis is the process, in the cell cycle, by which a cell duplicates into two genetically alike (identical) daughter cells.
  4. 4. Important Cell Structures Involved in Mitosis  Chromatid – each strand of a duplicated chromosome  Centromere – the area where each pair of chromatids is joined  Centrioles – tiny structures located in the cytoplasm of animal cells that help organize the spindle  Spindle – a fanlike microtubule structure that helps separate the chromatids
  5. 5. REMEMBER! Interphase Prophase Metaphase Anaphase Telophase Cytokinesis IPMATC
  6. 6. Stages of Mitosis - INTERPHASE - PROPHASE - METAPHASE - ANAPHASE - TELOPHASE - CYTOKINESIS
  7. 7. Interphase  The cell builds up energy  It grows and copies its chromosomes in preparation for cell division.
  8. 8. Prophase  During prophase the duplicated chromosome condenses and becomes visible.  The centrioles move to opposite sides of nucleus and help organize the spindle.  The spindle forms and DNA strands attach at a point called their centromere.  The nucleolus disappears and nuclear envelope breaks down.
  9. 9. Metaphase  the centromeres of the duplicated chromosomes line up across the center of the cell.  The spindle fibers connect the centromere of each chromosome to the two poles of the spindle.
  10. 10. Anaphase  the centromeres are pulled apart and the chromatids separate to become individual chromosomes.  The chromosomes separate into two groups near the poles of the spindle.
  11. 11. Telophase  the chromosomes spread out into a tangle of chromatin.  A nuclear envelope re-forms around each cluster of chromosomes.  The spindle breaks apart, and a nucleolus becomes visible in each daughter nucleus.
  12. 12. Cytokinesis  How do daughter cells split apart after mitosis?  Cytokinesis completes the process of cell division – it splits one cell into two.
  13. 13.  Cytokinesis is the division of the cytoplasm.  The process of cytokinesis is different in animal and plant cells. Cytokinesis
  14. 14. Cytokinesis in Animal Cells The cell membrane is drawn in until the cytoplasm is pinched into two equal parts.  Each part contains its own nucleus and organelles.
  15. 15. Cytokinesis in Plant Cells  In plants, the cell membrane is not flexible enough to draw inward because of the rigid cell wall.  Instead, a cell plate forms between the divided nuclei that develops into cell membranes.  A cell wall then forms in between the two new membranes.
  16. 16. The Stages of the Cell Cycle
  17. 17. Resources -Biology 7th Edition. 2005. Campbell and Reece - Google Images http://images.google.com/imghp?hl=en&tab= wi  John Bender. Mitosis Tutorial. http://www.slideshare.net/jbrander/mitosis-tutorial  GUGULETHU MTHAMBO. Mitosis Presentation. http://www.slideshare.net/201224785/mitosis-life-sci

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