Cell, Eukaryotic - Research Article from Macmillan Science Library: Genetics

This encyclopedia article consists of approximately 8 pages of information about Cell, Eukaryotic.
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Physical Characteristics

A typical eukaryotic cell is about 25 micrometers in diameter, but this average hides a large range of sizes. The smallest cell is a type of green algae, Ostreococcus tauri, with a diameter of only 0.8 micrometers, about the size of a typical bacterium. The human sperm is about 4 micrometers wide, but 40 micrometers long, while the egg is about 100 micrometers in diameter. Single neurons can be a meter or more in length. While schematic diagrams often picture cells as simple cubes or spheres, most cells have highly individual shapes. Human red blood cells are flattened disks indented on either side; muscle cells are highly elongated; neurons are long and thin with many branches on each end; and white blood cells constantly change their shapes as they crawl through the body.

Cells are also often depicted as a bag of fluid with a smattering of structures within, but this...

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This section contains 2,385 words
(approx. 8 pages at 300 words per page)
Buy the Cell, Eukaryotic Encyclopedia Article
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Macmillan Science Library: Genetics
Cell, Eukaryotic from Macmillan Science Library: Genetics. Copyright © 2001-2006 by Macmillan Reference USA, an imprint of the Gale Group. All rights reserved.
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