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10 Cards in this Set
- Front
- Back
exoenzymes
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enzymes that work outside the bacteria.
e.g., Permeases break down polysaccharides into monosaccs so they can be taken up by the bug. |
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endoenzymes
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enzymes necessary for intracellular proceses like metabolizing nutrients.
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Constitutive vs. Adaptive Enzymes
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Constitutive are always present;
Adaptive normally low concentration; produced at higher levels in presence of substrate. |
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3 reasons bacteria need carbs:
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-cell wall
-glycocalyx -nucleic acids |
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anabolism of carbs in bugs is called
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gluconeogenesis
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what do bacteria need lipids for?
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-cell wall
-cell membrane -endotoxins - in gram negatives! LPS |
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why do bacteria do purine and pyrimidine biosynthesis?
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they break down enzymes to make new ones.
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what do bacteria require proteins/amino acids for?
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-enzymes
-cell wall -cell membrane -exotoxins -appendages |
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what is necessary for protein catabolism?
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peptones
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what organism is used for Q.C. on autoclaving?
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bacillus stearothermophilus
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