go to section: chapter 10 cell division. go to section: interest grabber getting through materials...
DESCRIPTION
Go to Section: Cell Size Surface Area (length x width x 6) Volume (length x width x height) Ratio of Surface Area to Volume Ratio of Surface Area to Volume in Cells Section 10-1TRANSCRIPT
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Go to Section:
Chapter 10Cell Division
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Go to Section:
Interest Grabber
Getting Through
Materials move through cells by diffusion. Oxygen and food move into cells, while waste products move out of cells. How does the size of a cell affect how efficiently materials get to all parts of a cell?
Section 10-1
1. Which would be more efficient and use less energy?
Delivering food by foot all across Athens or delivering food by foot only in Athens High School?
Why?
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Go to Section:
Cell Size
Surface Area (length x width x 6)
Volume (length x width x height)Ratio of Surface Area to Volume
Ratio of Surface Area to Volume in CellsSection 10-1
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Go to Section:
Interest Grabber
Cell Cycle
The cell cycle represents recurring events that take place in the period of time from the beginning of one cell division to the beginning of the next. In addition to cell division, the cell cycle includes periods when the cell is growing and actively producing materials it needs for the next division.
Section 10-2
1. Why is the cell cycle called a cycle?2. Why do you think that it is important for a cell to grow in size during its
cell cycle?3. What might happen to a cell if all events leading up to cell division took
place as they should, but the cell did not divide?
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Go to Section:
Section Outline
10–2 Cell DivisionA. ChromosomesB. The Cell CycleC. Events of the Cell CycleD. Mitosis
1. Prophase2. Metaphase3. Anaphase4. Telophase
E. Cytokinesis
Section 10-2
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Go to Section:
includes
is divided into is divided into
Concept MapSection 10-2
Cell Cycle
M phase (Mitosis)
Interphase
G1 phase S phase ProphaseG2 phase Metaphase TelophaseAnaphase
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Go to Section:
M phase
G2 phase
S phase
G1 phase
Figure 10–4 The Cell CycleSection 10-2
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Go to Section:
Centrioles
Chromatin
Interphase
Nuclear envelope
Cytokinesis
Nuclear envelope reforming
Telophase
Anaphase
Individual chromosomes
Metaphase
Centriole
Spindle
CentrioleChromosomes
(paired chromatids)
Prophase
Centromere
Spindle forming
Section 10-2
Figure 10–5 Mitosis and Cytokinesis
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Go to Section:
Centrioles
Chromatin
Interphase
Nuclear envelope
Cytokinesis
Nuclear envelope reforming
Telophase
Anaphase
Individual chromosomes
Metaphase
Centriole
Spindle
CentrioleChromosomes
(paired chromatids)
Prophase
Centromere
Spindle forming
Section 10-2
Figure 10–5 Mitosis and Cytokinesis
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Go to Section:
Centrioles
Chromatin
Interphase
Nuclear envelope
Cytokinesis
Nuclear envelope reforming
Telophase
Anaphase
Individual chromosomes
Metaphase
Centriole
Spindle
CentrioleChromosomes
(paired chromatids)
Prophase
Centromere
Spindle forming
Section 10-2
Figure 10–5 Mitosis and Cytokinesis
![Page 11: Go to Section: Chapter 10 Cell Division. Go to Section: Interest Grabber Getting Through Materials move through cells by diffusion. Oxygen and food move](https://reader033.vdocuments.us/reader033/viewer/2022060206/5a4d1ba67f8b9ab0599c937e/html5/thumbnails/11.jpg)
Go to Section:
Centrioles
Chromatin
Interphase
Nuclear envelope
Cytokinesis
Nuclear envelope reforming
Telophase
Anaphase
Individual chromosomes
Metaphase
Centriole
Spindle
CentrioleChromosomes
(paired chromatids)
Prophase
Centromere
Spindle forming
Section 10-2
Figure 10–5 Mitosis and Cytokinesis
![Page 12: Go to Section: Chapter 10 Cell Division. Go to Section: Interest Grabber Getting Through Materials move through cells by diffusion. Oxygen and food move](https://reader033.vdocuments.us/reader033/viewer/2022060206/5a4d1ba67f8b9ab0599c937e/html5/thumbnails/12.jpg)
Go to Section:
Centrioles
Chromatin
Interphase
Nuclear envelope
Cytokinesis
Nuclear envelope reforming
Telophase
Anaphase
Individual chromosomes
Metaphase
Centriole
Spindle
CentrioleChromosomes
(paired chromatids)
Prophase
Centromere
Spindle forming
Section 10-2
Figure 10–5 Mitosis and Cytokinesis
![Page 13: Go to Section: Chapter 10 Cell Division. Go to Section: Interest Grabber Getting Through Materials move through cells by diffusion. Oxygen and food move](https://reader033.vdocuments.us/reader033/viewer/2022060206/5a4d1ba67f8b9ab0599c937e/html5/thumbnails/13.jpg)
Go to Section:
Centrioles
Chromatin
Interphase
Nuclear envelope
Cytokinesis
Nuclear envelope reforming
Telophase
Anaphase
Individual chromosomes
Metaphase
Centriole
Spindle
CentrioleChromosomes
(paired chromatids)
Prophase
Centromere
Spindle forming
Section 10-2
Figure 10–5 Mitosis and Cytokinesis
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Go to Section:
Interest Grabber
Knowing When to Stop
Suppose you had a paper cut on your finger. Although the cut may have bled and stung a little, after a few days, it will have disappeared, and your finger would be as good as new.
Section 10-3
1. How do you think the body repairs an injury, such as a cut on a finger?
2. How long do you think this repair process continues?3. What do you think causes the cells to stop the repair process?
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Go to Section:
Control of Cell DivisionSection 10-3
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Videos
Click a hyperlink to choose a video.Animal Cell MitosisAnimal Cell Cytokinesis
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Click the image to play the video segment.
Video 1
Animal Cell Mitosis
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Click the image to play the video segment.
Video 2
Animal Cell Cytokinesis
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Links on cell growth Links from the authors on stem cellsShare cell cycle lab dataInteractive test
For links on cell division, go to www.SciLinks.org and enter the Web Code as follows: cbn-3102.For links on the cell cycle, go to www.SciLinks.org and enter the Web Code as follows: cbn-3103.
Go Online
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Interest Grabber Answers
1. On a sheet of paper, make a drawing of a cell that has the following dimensions: 5 cm x 5 cm x 5 cm. Your partner should draw another cell about one half the size of your cell on a separate sheet of paper.
2. Compare your drawings. How much longer do you think it would taketo get from the cell membrane to the center of the big cell than from the cell membrane to the center of the smaller cell?It would take twice the amount of time.
3. What is the advantage of cells being small?If cells are small, materials can be distributed to all parts of the cell quickly.
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Interest Grabber Answers
1. Why is the cell cycle called a cycle?It represents recurring events.
2. Why do you think that it is important for a cell to grow in size during its cell cycle?If a cell did not grow in size, each cell division would produce progressively smaller cells.
3. What might happen to a cell if all events leading up to cell division took place as they should, but the cell did not divide?Students may infer that a cell that undergoes all sequences of the cell cycle would grow increasingly larger—to a point at which the cell could no longer exchange materials with the environment efficiently enough to live.
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Interest Grabber Answers
1. How do you think the body repairs an injury, such as a cut on a finger?The cut is repaired by the production of new cells through cell division.
2. How long do you think this repair process continues?Cell division continues until the cut is repaired.
3. What do you think causes the cells to stop the repair process?Students will likely say that when the cut is filled in, there is no room for more cells to grow.
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