Flagella and Pili
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Q: Flagella are long protein structures responsible for _______. | show 🗑
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| Q: Flagella can rotate _______ revolutions per minute. | show 🗑
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| Q: Flagella have three basic parts. Name them. | show 🗑
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| show | A: The filament is made of proteins called flagellin.
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| show | A: The hook connects the filament to the cell.
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| show | A: The basal body anchors flagellum into the cell wall.
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| Q: What is it called when bacteria direct their movements according to certain chemicals in their environment? | show 🗑
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| Q: When referring to chemotaxis, if a chemical compound is nutrient it acts as a(n) _______. | show 🗑
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| Q: When referring to chemotaxis, if a chemical compound is toxic it acts as a(n) _______. | show 🗑
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| Q: What is responsible for the run and tumble movement of bacteria? | show 🗑
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| show | A: Monotrichous is having a single flagellum at one pole of the cell.
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| show | A: Amphitrichous is having single flagella at both poles of the cell.
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| show | A: Lophotrichous is having two or more flagella at one or both poles of the cell.
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| show | A: Peritrichous is having flagella completely surround the cell.
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| show | A: Pili are considerably SHORTER and THINNER than flagella.
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| show | A: True!
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| Q: One specific type of pili, called fimbriae, is used for _______. | show 🗑
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| Q: Along with attachment and movement, pili are involved in a mechanism of DNA transfer called _______. | show 🗑
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| show | (blank)
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Created by:
PCC Microbiology
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