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9 Cards in this Set
- Front
- Back
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What is the difference between gram positive and negative? |
Positive = THICK cell wall, keeps blue stain Negative = THIN cell wall with inner and outer membrane, stains red |
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What are the 2 types of gram positive cocci? |
Staphylococci (clusters) & Streptococci (strips) |
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How do you test for the type of staphylococci & what are the 2 types? |
Does it clot with COAGULASE?
Yes = S. aureus No = Coagulase negative staph |
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How do you test for the type of streptococci & what are the 3 types? |
What extent do they break down blood?
Completely = beta haemolytic (e.g. group A) Partially = alpha haemolytic (e.g. pneumococcus) None = non haemolytic (e.g. enterococcus) |
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Give 3 examples of gram positive bacilli |
Listeria, cornynebacterium, clostridium |
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Give 2 examples of gram negative cocci |
N. meningitidis, N. gonorrhoea |
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Give 4 examples of gram negative bacilli |
Bacteroides, pseudomonae, haemophilua, enterobacteraciae |
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Give further examples of enterobacteraciae |
E. coli, kiebelella, enterobacter, proteus |
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What is different about atypical bacteria? Give 2 examples |
They don't have a normal cell wall and so are not sensitive to antibiotics that target the cell wall. Examples: mycoplasma, chlamydia |
