Flagella: Difference between revisions
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Flagella are long protusions on the back of a cell such as the tail of the [[Sperm|sperm]] cell. They can propel a cell through liquid or fluid mediums via their undulation and fluctation. [[Eukaryotic flagella|Eukaryotic flagella]] are enlongated versions of [[Cilia|cilia]] whereas [[ | Flagella are long protusions on the back of a cell such as the tail of the [[Sperm|sperm]] cell. They can propel a cell through liquid or fluid mediums via their undulation and fluctation. [[Eukaryotic flagella|Eukaryotic flagella]] are enlongated versions of [[Cilia|cilia]] whereas [[Bacterial flagella|bacterial flagella]] are completely different both in structure and mechansims <ref>Albert, B. et al. (2008) Molecular Biology of the Cell. New York: Garland Publishing</ref>. | ||
'''Bacterial Flagella''' Bacterial flagella are made entirely of protein and have a diameter of around 12-30nm. Several thousand protein subunit molecules of Flagellin make up one bacterial flagellum, of these molecules there are two types. Three types of flagella arrangement are understood to occur: monotrichous, peritrichous and lophotrichous. Monotrichous flagellum are single and [[Polar]], a peritrichous arrangement occurs with flagella over the entire cell surface, whilst lophotrichous arrangements occur when there are many polar flagellum. | |||
=== Reference === | === Reference === | ||
<references /> | <references /> | ||
Brooks et al: Jawetz, Melnick & Adelberg's Medical Microbiology, 24th edition, The McGraw-Hill Compaines, Inc, 2007 | |||
Revision as of 21:57, 22 October 2012
Flagella are long protusions on the back of a cell such as the tail of the sperm cell. They can propel a cell through liquid or fluid mediums via their undulation and fluctation. Eukaryotic flagella are enlongated versions of cilia whereas bacterial flagella are completely different both in structure and mechansims [1].
Bacterial Flagella Bacterial flagella are made entirely of protein and have a diameter of around 12-30nm. Several thousand protein subunit molecules of Flagellin make up one bacterial flagellum, of these molecules there are two types. Three types of flagella arrangement are understood to occur: monotrichous, peritrichous and lophotrichous. Monotrichous flagellum are single and Polar, a peritrichous arrangement occurs with flagella over the entire cell surface, whilst lophotrichous arrangements occur when there are many polar flagellum.
Reference
- ↑ Albert, B. et al. (2008) Molecular Biology of the Cell. New York: Garland Publishing
Brooks et al: Jawetz, Melnick & Adelberg's Medical Microbiology, 24th edition, The McGraw-Hill Compaines, Inc, 2007