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Nelson Education > School > Secondary Science > Science 9 > Student Centre > Web Links > Chapter 5
 

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UNIT 2: REPRODUCTION

Chapter 5: Cell Growth and Reproduction

5.1  The Microscope and Cell Theory   |   5.2  Cells: The Basic Unit of Life   |  5.3  Discovering the Origin of Cells   |   5.4  The Importance of Cell Division   |   5.5  Cell Division   |   5.6  Observing Cell Division   |   5.8   Reproduction and Cell Division   |   5.10  Hormones for Cell Growth and Division   |   5.12  Cell Division and Patterns of Growth   |   5.13  Slowing Down Aging    | 

Section Links
5.1
The Microscope and Cell Theory		 The History of the Microscope.  Focus on Leeuwenhoek. Includes many pictures of what could be seen through early microscopes.

Microscapes: Images From the Microscope.  
One of the Web's largest collections of color photographs taken through an optical microscope (commonly referred to as "photo-micro-graphs"). Visit the Photo Gallery for an introductory selection of images covering just about everything from beer and ice cream to integrated circuits and ceramic superconductors. Operate a Scanning Electron Microscope over the Web or explore the Museum of Microscopy.

5.2
Cells:
The Basic Unit of Life		 Cells: Origins.  A set of teaching notes that covers a lot of the big questions about life on earth.
5.3
Discovering the Origin of Cells		 The Slow Death of Spontaneous Generation (1668-1859).  The story of how Redi, Needham, Spallanzani and Pasteur tackled the issue of spontaneous generation.

The Spontaneous Generation. The Theory of Spontaneous Generation. This site explains the theory of spontaneous generation, and how scientists disproved it..

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5.4
The Importance of Cell Division		 What Is Cancer?  An overview of cancer (uncontrolled cell division) and its possible causes.
5.5
Cell Division

Cell Division: Binary Fission and Mitosis.  A detailed and well-illustrated description of how and why different kinds of cells divide.

Mitosis.  A good clear diagram for mitosis.

5.6
Observing Cell Division		 WC Earnshaw Mitosis Page.  Includes photos.
5.8
Reproduction and Cell Division

Cells Alive!  You must go here to see the BioCams — calculate how fast bacteria divide or view the Cancer Cell Cam to describe morphological changes that a human cancer cell undergoes during mitosis.

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5.10
Hormones
for Cell Growth and Division		 Dwarfism.org  Dwarfism.org was built by people of short stature, for people of short stature to help educate the public and support the many non-profit and medical groups that relate to the genetic condition known as dwarfism.

Acromegaly.  A definition and description of this human growth disorder.

5.12
Cell Division and Patterns of Growth		 Human Embryology.  Trace the development of the human embryo. Every chapter contains a self-quiz and several animations.

Frog Embryology.  Follow the frog's growth process from egg to tadpole, assisted by several diagrams, charts, and definitions of key terms.

5.13
Slowing
Down Aging		 The Aging Process.  Clear, useful information on the physical changes that occur with aging.

Aging and Memory Loss.  A look at the myths and misconceptions of memory loss and its possible causes.

Human Growth Hormone.  A commercial site promoting the use of human growth hormone as a potential anti-aging treatment.

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