Bell work 11-2
Start your bell work on page 61
Draw the cell cycle circle and explain all the
parts.
Draw replication
Mitosis Foldable
• You need 2 sheets of one
color
• You need one sheet of a
different color
• You will use your power
point notes to create a
foldable similar to mine.
• Place your foldable in
your science journal (it
will be included in your
journal grade)
Mitosis
Interphase
G1 Phase
routine
size)
the cell grows & carries out
functions. (increase in
S Phase DNA is duplicated/copied.
G2 Phase Cell prepares for mitosis.
Cell grows & produces additional organelles
& cytoplasm.
Animal Cell
Plant Cell
Photographs from: http://www.bioweb.uncc.edu/biol1110/Stages.htm
Prophase
–
Chromatin condenses and forms chromosomes.
• Pairs of sister chromatids are joined at the centromere.
–
Nuclear membrane breaks down and disappears.
–
Centrioles (in animal cells) split and move toward
opposite poles of the cell.
–
A spindle forms fibers that organize themselves
around the centrioles and attach themselves to the
centromere.
 Spindle
Fibers are thread-like structures (microtubles) that
help separate chromosomes during mitosis .
Animal Cell
Plant Cell
Spindle fibers
Centrioles
Photographs from: http://www.bioweb.uncc.edu/biol1110/Stages.htm
Metaphase

Chromosomes line up at the
equator of the cell.

Each centromere is connected
to a spindle fiber.
Animal Cell
Plant Cell
Photographs from: http://www.bioweb.uncc.edu/biol1110/Stages.htm
Anaphase

Sister chromatids separate at the
centromere & are pulled by spindle
fibers to opposite ends of the cell.

Now they again chromosomes.
Animal Cell
Plant Cell
Photographs from: http://www.bioweb.uncc.edu/biol1110/Stages.htm
Telophase
– Chromosomes gather at
opposite ends of cell.
• Begin to unravel…back to
chromatin!
– Nuclear membrane and
nucleolus reform
– Mitosis is now complete!
• All the remains is the division!
Animal Cell
Plant Cell
Photographs from: http://www.bioweb.uncc.edu/biol1110/Stages.htm
Cytokinesis
• Not part of mitosis.
• Cytoplasm divide in half.
• Each daughter cell has an identical set of
chromosomes
• Plants – cell plate separates the two new cells
• Animals – cleavage furrow pinches the two
new cells a part;
centrioles
double
Animal Mitosis -- Review
Interphase
Prophase
Metaphase
Anaphase
Telophase
Interphase
Plant Mitosis -- Review
Interphase
Prophase
Metaphase
Anaphase
Telophase
Interphase
Table of Contents
10-22 Pre-AP only Root words page 74
10-22 Cell Cycle notes page 75-76
10-23 DNA notes page 77
10-23 DNA Double Helix Activity 78-79
10-26 DNA Cut and Paste paper 80
10-26 Bell work page 81
10-27 DNA Replication 82-83
10-28 Electrophoresis 84
10-28 CSI investigation 85
10-29 DNA extraction Lab 86
10-30 Replication practice 87
11-2 Mitosis Foldable 88
11-2 Bell work page 89