9-2 mitosis and cytokinesis what key events happen in the cell during mitosis and cytokinesis?
TRANSCRIPT
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9-2 MITOSIS AND CYTOKINESIS
WHAT KEY EVENTS HAPPEN IN THE CELL DURING MITOSIS AND CYTOKINESIS?
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JOURNAL
Come up with as many synonyms for the word “copy” as you can.
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JOURNAL
COPY
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EUKARYOTIC CELL CYCLE
What do you already know?
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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.
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INTERPHASECell grows and
carries out cellular functions
DNA and centrioles replicate
Preparation for division
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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
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MITOSISB. Metaphase:Chromosomes attach to spindle apparatus and line up at equator of cell
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MITOSIS
C. Anaphase:Microtubules
shorten, pulling sister chromatids apart.
Individual chromosomes move to poles of the cell
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MITOSIS
D. Telophase:Chromosomes reach
poles of cell and “relaxes” into chromatin
Nuclear envelop reforms, nucleolus becomes visible
Cell membrane begins to pinch
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CYTOKINESIS
Splits one cell into two
Animal Cell – membrane pinches inwardPlant Cell – Cell plate forms
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RESULT
Each daughter cell has identical set of chromosomes
View it in action
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LABEL EACH PHASE OF MITOSIS AND PLACE THE STAGES IN THE CORRECT ORDER.
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1. A
2. B
3. C
4. D
A. interphase
B. prophase
C. metaphase
D. telophase
Which is the first phase of mitosis?
Cellular Reproduction
Chapter Diagnostic Questions
Chapter
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1. A
2. B
3. C
4. D
Cellular Reproduction
Chapter Diagnostic Questions
Chapter
A. interphase
B. metaphase
C. anaphase
D. telophase
During what phase do the sister chromatids line up in the middle of the cell?
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1. A
2. B
3. C
4. D
Cellular Reproduction
Chapter Diagnostic Questions
Chapter
A. cytokinesis
B. interphase
C. apoptosis
D. mitosis
Which is not a phase of the cell cycle?
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1. A
2. B
3. C
4. D
Cellular ReproductionChapter
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
D. cells shaped like a cube
Section 1 Formative Questions
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1. A
2. B
3. C
4. D
Cellular ReproductionChapter
At what stage does a cell spend most of its life?
A. cytokinesis
B. interphase
C. mitosis
D. synthesis
Section 1 Formative Questions
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1. A
2. B
3. C
4. D
Cellular ReproductionChapter
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.
C. The cell’s nucleus and nuclear material divide.
D. The cell’s cytoplasm divides.
Section 1 Formative Questions
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1. A
2. B
3. C
4. D
Cellular ReproductionChapter
In what stage of the cell cycle does the cell’s replicated genetic material separate?
A. cytokinesis
B. interphase
C. mitosis
D. prophase
Section 2 Formative Questions
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1. A
2. B
3. C
4. D
Cellular ReproductionChapter
Which diagram shows anaphase?
A. B.
C. D.
Section 2 Formative Questions
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1. A
2. B
Cellular ReproductionChapter
At the end of mitosis the nuclear material is divided and two new cells have formed.
Section 2 Formative Questions
A. true
B. false
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1. A
2. B
3. C
4. D
Cellular ReproductionChapter
This cell has completed what stage of mitosis?
A. anaphase
B. interphase
C. metaphase
D. telophase
Chapter Assessment Questions
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1. A
2. B
3. C
4. D
Cellular ReproductionChapter
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
D. movement of chromosomes to the poles of the cell