Transcript Mitosis PowerPoint

a process of cell division that forms two new nuclei,
each of which has the same number of chromosomes
What is the
importance of
Mitosis and
Cytokinesis to
the cell cycle?
Cytokinesis
Prophase
Stage
Description of Stage
First and longest phase of mitosis. The
nuclear envelope dissolves (goes away),
chromatin coils up and condenses to form
visible chromosomes.
Example Drawings
Plant Cell
Animal Cell
Metaphase
Stage
Description of Stage
The short second phase of mitosis. The
doubled chromosomes become attached to the
spindle fibers at their centromeres and move
to the equator of the cell.
Example Drawings
Plant Cell
Animal Cell
Anaphase
Stage
Description of Stage
The 3rd phase of mitosis. During this phase,
the centromeres split and the sister
chromatids are pulled to opposite poles of the
cell by the shortening of the microtubules.
Example Drawings
Plant Cell
Animal Cell
Telophase
Stage
Description of Stage
The final phase of mitosis. Two distinct
daughter cells are formed and the cells begin
to separate. This stage is indicated by the
formation of a cell plate in plant cells and a
cleavage furrow in animal cells.
Example Drawings
Plant Cell
Cell Plate
Animal Cell
Cleavage Furrow
Why is Cytokinesis
important?
Mitosis guarantees genetic continuity. When
mitosis is complete, unicellular organisms
remain as single cells, In multicellular
organisms cell reproduction results in cells
that work together as tissues  tissues work
together to form organs  organs to form
organ systems  and organ systems form
organisms.
In lab groups, go to your
tables, open the envelope and
look at the mitosis stages
and description cards
Place the cards in the correct order of
mitosis with description in the middle
and the pictures of each stage on the
outside.