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18 Cards in this Set
- Front
- Back
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Chemoorganotrophs
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Receive energy and carbon from organic compounds. Heterotrophic- like animals.
Escherichia coli |
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Aerobes
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require and use oxygen for metabolism. "strict" or "obligate" aerobes die in its absence- Bacillus subtilis
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Facultative Anaerobes (a.k.a facultative aerobes
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use oxygen when available, can grow in its absence.
Escherichia coli |
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Anaerobes
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Do not use oxygen even when it's available."strict" or "obligate" anaerobes are killed by oxygen.
Clostridium botulinum |
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Aerotolerant anaerobes
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can survive exposure to oxygen.
Lactobacillus acidophilus |
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Chemical characteristic of Mycobacterium
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presence of mycolic acids
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Chemical characteristic of Archaea
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absence of peptidoglycan
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Name 4 Acidic (anionic) Dyes
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I2KI, Eosin, Congo Red, Fuchsin
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Acidic dyes have what kind of charge? And what are they attracted to?
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Acidic dye molecule has a negative charge. and is attracted to positively charged cell components
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Acidic dyes are good dyes for. .
And bad for. . . . |
eukaryotes- binds to histones
bacteria |
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Name 4 Basic (cationic) Dyes
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Methylene blue, crystal violet, gentian violet, safranin
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Basic dyes have what kind of charge? And what are they attracted to?
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Basic Dye molecule is positively charged. Is attracted to negatively-charged cell components (DNA, Proteins)
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Basic *cationic Dyes are good for. . . .
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prokaryotes AND eukaryotes
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Neutral Dyes have what kind of charge? Attracted to what?
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dye molecule is hydrophobic or is a salt (+ and - ions)- binds to uncharged cell components (fat deposits, PHB (poly-B-hydroxy butyric acid
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Gram Positive cells are what color?
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Purple
Staphylococcus aureus |
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Gram negative cells are what color?
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Pink
Escherichia Coli |
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Gram variable cells are what color?
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Purple and pink, mixed- Bacillus subtilis
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Gram unreactive cells are what color?
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Colorless
Mycobacterium tuberculosis |
