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| the direction and motion of a bacteria is? |
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| a random motion if no attractant or repellent |
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| straight line and the flagella rotates counter clockwise |
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| no direction flagella will rotate clockwise |
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| if attractant / repellent present |
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| what is the difference between chemotaxis and phototaxis? |
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Chemotaxis:
bacteria attracted/ repellent by a chemical stimulus
Phototaxis:
bacteria attracted/ repellent by light |
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| what are the two ways to test motilty? |
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- hanging drop slide
- motility agar 0.4% agar
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rapid detection of motility
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| what is the difference between brownian motion and motility? |
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Brownian motion: result of random motion of H2O molecule
True motility: by flagella |
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