BIOLOGY
by Miller & Levine
[complete Table of Contents]
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Use the pull-down menu to jump to any of the Book's 40 Chapters: |
Additional Resources:
Stem Cells: Promises and Problems (Page 253)
What's
your opinion on the controversial issue of embryonic Stem Cell research?
Check out the "Issues" Feature on stem cells from page 253 of
the Dragonfly book.
An animation showing the major events during mitosis in animal cells.
An animated explanation of events during the phases of the cell cycle.
Chapter 10 
Cell Growth & Division
In this chapter, students will read about the importance of cell division and the processes by which it occurs, with an emphasis on mitosis in eukaryotes. They will also read about the cell cycle and its control mechanisms.. The links below lead to additional resources to help you with this chapter. These include Hot Links to Web sites related to the topics in this chapter, the Take It to the Net activities referred to in your textbook, a Self-Test you can use to test your knowledge of this chapter, and Teaching Links that instructors may find useful for their students.
| Hot Links | Take it to the Net |
| Chapter Self-Test | Teaching Links |
Section
10-1: Cell Growth
The larger a cell
becomes, the more demands the cell places on its DNA and the more trouble
the cell has moving enough nutrients and wastes across the cell membrane.
Section
10-2: Cell Division
During the cell cycle, a cell grows,
prepares for division, and divides to form two daughter cells, each of
which then begins the cycle again.
Biologists divide the events of mitosis
into four phases: prophase, metaphase, anaphase, and telophase.
During prophase in animal cells, the
centrioles separate and take up positions on opposite sides of the nucleus.
During metaphase, the chromosomes line
up across the center of the cell. Microtubules connect the centromere
of each chromosome to the poles of the spindle.
During anaphase, the centromeres that
join the sister chromatids split, allowing the sister chromatids to separate
and become individual chromosomes.
In telophase, the chromosomes, which
were distinct and condensed, begin to disperse into a tangle of dense
material.
Cytokinesis is the division of the cytoplasm.
Section
10-3: Regulating the Cell Cycle
Cyclins regulate the timing of the cell
cycle in eukaryotic cells.
Cancer cells do not respond to the signals
that regulate the growth of most cells. As a result, they form masses
of cells called tumors that can damage the surrounding tissues.
An interactive exercise in analyzing mitosis and the cell cycle - from The Biology Project at the University of Arizona.
Mitosis in the Light Microscope
A series of beautiful micrographs showing the stages of mitosis.
Click on Image to Watch Mitosis - the Movie
This is just one Quicktime video clip from Dr. Ted Salmon's Page of Mitosis videos (at the University of North Carolina).
