Difference between revisions of "Flagellum"

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A flagellum is a tail-like projection that protrudes from the cell body of certain prokaryotic and eukaryotic cells, and functions in locomotion [1].
 
A flagellum is a tail-like projection that protrudes from the cell body of certain prokaryotic and eukaryotic cells, and functions in locomotion [1].
 
Three types of flagella are found– bacterial, archaeal and eukaryotic flagella.
 
Three types of flagella are found– bacterial, archaeal and eukaryotic flagella.
Bacterial flagella are helical filaments that rotate like screws (Fig. 1).  
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Bacterial flagella are helical filaments that rotate like screws (Fig. 1) [1]. Eukaryotic flagella are complex cellular projections that lash back and forth [1].
[[Image:bacterial flagella.jpg|thumb|200px|Fig. 1 [1]]]
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[[Image:bacterial flagella.jpg|thumb|200px|Fig. 1: Flagellum of Gram-negative Bacteria[1]]]
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[[Image:eukaryotic flagella.jpg|thumb|200px|Fig. 2: Euglena: a eukaryote with a flagellum [2]]]
 
==References==
 
==References==
 
[1] http://en.wikipedia.org/wiki/Flagellum
 
[1] http://en.wikipedia.org/wiki/Flagellum
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[2] http://www.daviddarling.info/encyclopedia/F/flagellum.html

Latest revision as of 22:57, 1 December 2009

A flagellum is a tail-like projection that protrudes from the cell body of certain prokaryotic and eukaryotic cells, and functions in locomotion [1]. Three types of flagella are found– bacterial, archaeal and eukaryotic flagella. Bacterial flagella are helical filaments that rotate like screws (Fig. 1) [1]. Eukaryotic flagella are complex cellular projections that lash back and forth [1].

Fig. 1: Flagellum of Gram-negative Bacteria[1]
Fig. 2: Euglena: a eukaryote with a flagellum [2]

References

[1] http://en.wikipedia.org/wiki/Flagellum

[2] http://www.daviddarling.info/encyclopedia/F/flagellum.html