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Question
What term refers to the fine, hairlike bristles that aid in adhesion in prokaryotic organisms?
What term refers to the fine, hairlike bristles that aid in adhesion in prokaryotic organisms?
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Solution
The correct option is C Fimbriae
Pili and fimbriae are cell surface appendages present in bacteria other than flagella. Flagella is for locomotion. A bacterium that has fimbriae is usually covered with short hair-like fibres. In contrast, pili are much longer, and a cell usually only has one or two pili. Pathogenic bacteria can have adhesins on the fimbriae that allow them to attach to the target tissues of their host. The glycocalyx is a glycoprotein covering that surrounds the cell membranes of some bacteria, epithelial and other cells. The glycocalyx enables certain bacteria to resist phagocytic engulfment by white blood cells in the body or protozoans in soil and water.
Pili and fimbriae are cell surface appendages present in bacteria other than flagella. Flagella is for locomotion. A bacterium that has fimbriae is usually covered with short hair-like fibres. In contrast, pili are much longer, and a cell usually only has one or two pili. Pathogenic bacteria can have adhesins on the fimbriae that allow them to attach to the target tissues of their host. The glycocalyx is a glycoprotein covering that surrounds the cell membranes of some bacteria, epithelial and other cells. The glycocalyx enables certain bacteria to resist phagocytic engulfment by white blood cells in the body or protozoans in soil and water.
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