More Related Content Similar to Mitosis ppt (20) More from charlietheteacher (20) Mitosis ppt3. • Multicellularity
• We all start out as
a single cell
• Key Concept:
Growth occurs when
more cells are
made, NOT
because cells get
bigger.
4. Skin cancer - the abnormal
growth of skin cells - most
often develops on skin
exposed to the sun.
6. G2: Cell double-
checks to make
sure DNA is
replicated and
cell has enough
organelles for
the upcoming
split
G1: Cell grows in
size.
S: Cell makes
identical copy
of its DNA
M: mitosis (Cell divides)
7. What are the three phases of
Interphase?
What happens during G1 phase?
What happens during S phase?
What happens during G2 phase?
9. What is binary
fission?
Why does the
DNA need to
move to
either side of
the cell
before the
cell divides?
10. • Chromosomes are copied
(# doubles)
• Chromosomes (DNA)
appear as threadlike
spaghetti called
chromatin
11. Animal Cell Plant Cell
Photographs from: http://www.bioweb.uncc.edu/biol1110/Stages.htm
12. • Nucleus starts to
disappear.
• Chromatin coils to
become chromosomes.
• Centrioles (or poles)
appear and begin to
move to opposite end
of the cell.
• Spindle fibers form
between the poles.
centriole
13. Animal Cell Plant Cell
Photographs from: http://www.bioweb.uncc.edu/biol1110/Stages.htm
Spindle fibers
Centrioles
15. Animal Cell Plant Cell
Photographs from: http://www.bioweb.uncc.edu/biol1110/Stages.htm
16. • Chromatids (or pairs
of homologous
chromosomes)
separate and begin
to move to opposite
ends of the cell.
Sister
chromatids
17. Animal Cell Plant Cell
Photographs from: http://www.bioweb.uncc.edu/biol1110/Stages.htm
18. What are the
steps of
mitosis?
What is the
spaghetti –like
DNA called?
What is the
coiled,
bundled DNA
called?
19. • Two new nuclei form.
• Chromosomes unwind
into chromatin (threads
instead of bundles).
• Mitosis ends.
20. Animal Cell Plant Cell
Photographs from: http://www.bioweb.uncc.edu/biol1110/Stages.htm
25. Animal Mitosis -- Review
Interphase Prophase
Metaphase Anaphase
Telophase Interphase
26. Plant Mitosis -- Review
Interphase Prophase
Metaphase Anaphase
Telophase Interphase
Editor's Notes A mnemonic to help remember the stages of mitosis.