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What are the differences between bacterial fimbriae and flagella?
Wiki User
∙ 14y ago
fimbriae and pili both are surface structure of bacteria but fimbriae are always found much in number having 3to25 nm diameter and 0.5 to 20 micrometer in length.
whereas pili are always found less in no generally 2 or more .
fimbriae are specialized for attachment of bacteria to its host as in case of pathogenic bacteria salmonella typhimurium , Nisseria gonorrhoea , bordella pertussis.
whereas pili are responsible for sexduction (conjugation) in bacteria ,and serves as receptors for certain viruses.
both fimbriae and pili are divided in many classes according to work they perform such as twiching motility of bacteria is observed in type 4 class..
besides these both are always noticed in gram (-) bacteria only exception cornibacterium renale (gram+).
Wiki User
∙ 12y ago
Wiki User
∙ 14y ago- Flagella are long and thread like, whereas fimbriae are short and thin.
- Flagella are composed of flagellin whereas fimbriae are made up of pilin.
- Unlike flagella fimbriae produce surface pellicles in liquid media.
- Flagella can be visualized in electron microscope and dark ground microscope, whereas fimbriae can be seen under electron microscopy only.
- Flagella help in locomotion, fimbriae help as sex pili in haemagglutination, and in adhesion.
- Flagella in different bacteria are antigenically different which is not so in fimbriae.
- Flagella are found in gram positive and negative bacteria while fimbriae are found in gram negative only.
- flagella are stained positively with phosphotungstic acid while fimbriae stain negatively.
Wiki User
∙ 11y agoFimbriae are protein filments that are all over the bacteria and ar used to attach onto other bacteria while colonisation.
Flagella are more complex and rotate to provide mobility for the cell.
Wiki User
∙ 11y agoCilia are motile structures made from microtubules and dyneins.
They can whip or beat themselves to propel a cell through fluid, or to brush particles and fluid over itself.
They are very similar to flagella but cilia tend to be shorter.
These are found on eukaryotes like animal cells.
Fimbriae are filamentous protein structures that are similar in structure and function to pili, but generally shorter.
Fimbriae enable cells to adhere to animal tissues (by binding to cell glycoproteins) or to form pellicles (thin sheets of cells on a liquid surface) on surfaces.
These are found on prokaryotes like bacteria.
Wiki User
∙ 13y agoa fimbriae is a proteinaceous appendage in many gram-negative bacteria that is thinner and shorter than a flagellum
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