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ARETAKIS LECTURE 1 EXAM QUESTIONS WITH CORRECT ANSWERS.

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ARETAKIS LECTURE 1 EXAM QUESTIONS WITH CORRECT ANSWERS.

Institution
Biology 2730
Course
Biology 2730

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lag phase of bacterial growth


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the bacteria adapt to new local conditions




Buffers

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Weak acids or bases that can react with strong acids or bases to prevent
sharp, sudden changes in pH




convalent bond


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A chemical bond formed when when atoms share electrons




Alkalophiles


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Grow at pH above 8.5




fimbriae and pili


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attachment to surfaces, bacterial conjugation and transformation, twitching
and gliding motility




streak plate method

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used to isolate pure cultures




Nuclear membrane bound nucleus, organelles made of membrane, include fungi,
algae, protozoa. Both multicelled and single celled organisms


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Eukarya




Turbidity


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A cloudy condition in water due to suspended silt or organic matter.




Alexander Fleming


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discovered penicillin




Mitochondria


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, Powerhouse of the cell, organelle that is the site of ATP (energy)
production




Diplococci


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Spherical bacteria that grow in pairs and cause diseases such as
pneumonia.




Chemotrophs


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Organisms that get energy from chemicals taken from the environment




Examples are algae, Protozoa, fungi and heminths.


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Eukaryotic cell




Thermophiles


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Institution
Biology 2730
Course
Biology 2730

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Uploaded on
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