Download 9-2 Mitosis and cytokinesis

9-2 MITOSIS AND CYTOKINESIS
WHAT KEY EVENTS HAPPEN IN THE
CELL DURING MITOSIS AND
CYTOKINESIS?
JOURNAL
Come up with as many synonyms for
the word “copy” as you can.
JOURNAL
COPY
EUKARYOTIC CELL CYCLE
What do you
already know?
MITOSIS CHALLENGE
What key events happen during each stage of mitosis?
1.
Obtain a note sheet, mitosis flashcards, microscope and onion root
tip slides
2.
Use the flashcards to complete your note sheet for the FIRST stage
of the cell cycle (Interphase).
3.
Using your microscope, identify a cell that is undergoing this stage.
Verify with Mrs. Miller
4.
Move onto the next stage and repeat.
INTERPHASE
 Cell grows and
carries out cellular
functions
 DNA and
centrioles replicate
 Preparation for
division
MITOSIS
A. Prophase
 Chromatin condenses into
chromosomes; sister chromatids
attached at the centromere
 Nuclear membrane disintegrates
 Nucleolus disappears
 Centrioles move to poles of cell
and spindle begins to form
MITOSIS
B. Metaphase:
 Chromosomes
attach to spindle
apparatus and line
up at equator of
cell
MITOSIS
C. Anaphase:
 Microtubules shorten,
pulling sister
chromatids apart.
 Individual
chromosomes move to
poles of the cell
MITOSIS
D. Telophase:
 Chromosomes reach poles
of cell and “relaxes” into
chromatin
 Nuclear envelop reforms,
nucleolus becomes visible
 Cell membrane begins to
pinch
CYTOKINESIS
 Splits one cell into two
 Animal Cell – membrane pinches inward
 Plant Cell – Cell plate forms
RESULT
 Each daughter cell has identical set of
chromosomes 
 View it in action
LABEL EACH PHASE OF MITOSIS AND PLACE
THE STAGES IN THE CORRECT ORDER.
Chapter
Cellular Reproduction
Chapter Diagnostic
Questions
Which is the first phase of mitosis?
A. interphase
B. prophase
C. metaphase
D. telophase
1.
A
2.
B
3.
C
4.
D
Chapter
Cellular Reproduction
Chapter Diagnostic
Questions
During what phase do the sister chromatids
line up in the middle of the cell?
A. interphase
B. metaphase
C. anaphase
D. telophase
1.
A
2.
B
3.
C
4.
D
Chapter
Cellular Reproduction
Chapter Diagnostic
Questions
Which is not a phase of the cell cycle?
A. cytokinesis
B. interphase
C. apoptosis
D. mitosis
1.
A
2.
B
3.
C
4.
D
Chapter
Cellular Reproduction
Section 1 Formative
Questions
Which can more efficiently supply nutrients and
expel waste products?
A. larger cells
B. smaller cells
C. cells with lower surface area to volume
ratio
1.
A
D. cells shaped like a cube
2.
B
3.
C
4.
D
Chapter
Cellular Reproduction
Section 1 Formative
Questions
At what stage does a cell spend most of
its life?
A. cytokinesis
B. interphase
C. mitosis
D. synthesis
1.
A
2.
B
3.
C
4.
D
Chapter
Cellular Reproduction
Section 1 Formative
Questions
What happens in the cell during cytokinesis?
A. The cell grows and carries out normal
functions.
B. The cell copies its DNA and forms
chromosomes.
1.
A
C. The cell’s nucleus and nuclear material
2.
B
divide.
D. The cell’s cytoplasm divides.
3.
C
4.
D
Chapter
Cellular Reproduction
Section 2 Formative
Questions
In what stage of the cell cycle does the
cell’s replicated genetic material separate?
A. cytokinesis
B. interphase
C. mitosis
D. prophase
1.
A
2.
B
3.
C
4.
D
Chapter
Cellular Reproduction
Section 2 Formative
Questions
Which diagram shows anaphase?
A.
C.
B.
D.
1.
A
2.
B
3.
C
4.
D
Chapter
Cellular Reproduction
Section 2 Formative
Questions
At the end of mitosis the nuclear material is
divided and two new cells have formed.
A. true
B. false
1.
A
2.
B
Chapter
Cellular Reproduction
Chapter Assessment
Questions
This cell has completed
what stage of mitosis?
A. anaphase
B. interphase
C. metaphase
D. telophase
1.
A
2.
B
3.
C
4.
D
Chapter
Cellular Reproduction
Standardized Test
Practice
Which occurs in plant cells but not animal cells
during the cell cycle?
A. formation of a cell plate
B. formation of microtubules
C. formation of a cleavage furrow at the equator of
the cell
1.
A
2.
B the
D. movement of chromosomes to the poles
of
3.
C
cell
4.
D