Download The Four Stages of Mitosis

By: Bobby Naugle
Sophie Terry
Krista Pipan
Prophase
Telophase
Mitosis
Anaphase
Metaphase
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Means in Ancient Greek “before stage”
Chromatin condenses into a structure
called chromosome which is called
Chromatin condensation
Sister chromatids are attached to each
other at the centromere
The centrosomes move away from each
other, apparently propelled by the
lengthening microtubules between them
The nuclear envelope breaks down and
microtubules of the spindle fiber can
now invade the nuclear area and interact
with the chromosomes, which have
become more dense
Each of the two chromatids of a
chromosome now has a kinetochore
“Kinetochore Microtubules” jerk the
chromosomes back and forth
Nonkinetochore microtubules interact
with those from the opposite pole of the
spindle
SWEET PICS
ANIMAL
PLANT
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In Greek it means
“between stage”
The longest stage of
mitosis , lasting about 20
minutes.
The centrosomes are now
at the opposite ends of
the cell
The chromosomes are
located in the middle of
the cell on the metaphase
plate where they are
equidistant from the
chromosomes on each
end of the cell
SWEET PICS
ANIMAL
PLANT
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In Greek means “up stage”
The shortest of the stages,
lasting only a few minutes
The sister chromatids of each
pair suddenly part, making
each chromatid a
chromosome
As kinetochore microtubules
shorten the chromosomes are
pulled to opposite ends of the
cell
The cell elongates as the
nonkinetochore microtubules
lengthen
As anaphase ends the two
ends of the cell have
equivalent and complete
collections of chromosomes
SWEET PICS
ANIMAL
PLANT
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Two daughter nuclei
begin to form in the cell
The nuclear envelopes
arise from the fragments
of the parent cell’s
nuclear envelope and
other portions of the
endomembrane system
The chromosomes
become less condensed
Mitosis is complete
SWEET PICS
ANIMAL
PLANT
Centrosomes- small region of cytoplasm adjacent to
the nucleus that contains the contrioles and serves to
organize microtubules
 Endomembrane system – composed of the different
membranes that are suspended in the cytoplasm
within a eukaryotic cell
 Kinetochores – protein structure on chromosomes
where the spindle fibers attach during division to
pull the chromosomes apart
 Metaphase plate – plane of the equator of the spindle
into the which chromosomes are positioned during
metaphase
 Spindle fibers – microtubules that move
chromosomes during cell division
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 http://www.bioweb.uncc.edu/1110Lab/n
otes/notes1/labpics/lab6pics.htm
 http://www.accd.edu/sac/biology/MrT/0
6web3/CH12.html
 http://www.biology.iupui.edu/biocourse
s/N100/2k2ch8mitosis.html
 http://biog-101104.bio.cornell.edu/biog101_104/tutorial
s/cell_division/onion_review_fs.html