Mitosis notes

Mitosis notes
January 07, 2016
The Cell Cycle Cell Division and Mitosis Three reasons why cells reproduce by asexual reproduction 1. Growth 2. Repair 3. Replacement Skin Cancer- the abnormal growth of skin cells, most often
develops on skin exposed to the sun
Cells that reproduce by asexual reproduction reproduce
constantly
Interphase Occurs before mitosis begins
Mitosis Cycle Interphase Prophase
Metaphase Anaphase Telophase & Cytokinesis ­ Chromosomes duplicate (copy) ­ When nucleus is ready to divide, each duplicated chromosome coils into two identical strands (chromatid) Centromere - part
of the chromosome
that links sister
chromatids
Mitosis notes
January 07, 2016
Prophase 1st Step in Mitosis Interphase
­ Cell begins to divide
­ Pairs of chromatids are visible Animal Cell Plant Cell
­ Nucleolus and nuclear membrane disintegrate
­ Centrioles (small structures) move to opposite ends of the cell ­ Spindle fibers form between centrioles
Centriole
Spindle Fiber
Chromatids
Metaphase
Prophase
2nd Step in Mitosis Animal Cell Plant Cell
­ Chromatids attached to spindle fibers
­ Chromatids line up across the center of the cell
Centriole
Chromosome
Centrioles
Spindle Fiber
Mitosis notes
January 07, 2016
Anaphase
Metaphase
Animal Cell
Plant Cell
3rd step in Mitosis ­ Chromatids separate and move to opposite ends of the cell Centriole
Chromosome
Spindle Fiber Telophase
4th step in Mitosis Anaphase ­ Spindle fibers start to disappear
­ Chromosomes start to uncoil Animal Cell Plant Cell
­ New nucleus forms
Spindle Fibers
Cytoplasm separating
New nucleus with chromosomes
Mitosis notes
January 07, 2016
Cytokinesis Telophase
Occurs after Mitosis Animal Cell Plant Cell
Animal Cell Mitosis
­ Membrane moves inward to create daughter cells ­ each with its own nucelus and 2 identical chromosomes Plant Cell Mitosis Mitosis notes
January 07, 2016
Remember!!
Interphase
Prophase Metaphase
IPMATC
Anaphase Telophase Cytokinesis
I Pray More At The Church
The Cell Cycle