Cell Division- Mitosis

Review
o What are the 4 steps of the cell cycle?

o What happens in Gap 1?

o What happens in Synthesis?

o What happens in Gap 2?

o What are G1, synthesis, and G2 called collectively?

o What are the two parts of mitosis?

Target #19-I can describe mitosis & cytokinesis
 Mitosis divides a cell’s nucleus into
o Each have the
o Occurs in all types of cells except ___________________________ (cells that make eggs or sperm)
o Continuous process
o Divided into phases

Target #20- I can describe what occurs during prophase
 Prophase
o
into tightly
coiled chromosomes
 Each consists of
o
breaks down
o Nucleolus disappears
o The centrosomes and centrioles begin to migrate to the
o
grow from the centrioles and
move to the center of the cell
Target #21- I can describe what occurs during metaphase
 Metaphase
o
of each
chromosome
o The chromosomes line up
cell
 Like football players in a scrimmage line
of the
Target #22- I can describe what occurs during anaphase
 Anaphase
o The sister chromatids

The
sister chromatids apart
o The sister chromatids move to the
Target #23- I can describe what occurs during telophase
 Telophase
o Complete set of
is found at each pole
o The
o The chromosomes
o The spindle fibers fall a part
which pulls the
starts to form
Target #19 (revisited)-I can describe mitosis & cytokinesis
 Cytokinesis
o Divides the
o Completes a full stage of the cell cycle
o Differs in animal and plant cells
 Animal cells
 The cell membrane
, forming a new cell around each nucleus
 Plant cells
 A
forms between the two
nuclei, like a wall
 A new membrane and cell wall form around it to divide
the cells completely
Target #24- I can identify the phases of mitosis by looking at a diagram