Term
what does MSA select for
what does it differentiate |
|
Definition
staphylococci
manitol and non manitol fermenters
YELLOW if fermented
(manitol fermenters are pathogenic) staphylococcii aureus |
|
|
Term
| what does EMB select and differentiate for |
|
Definition
selects for gram -
differentiates lactose fermenters and nonlactose fermenters/coliform/noncoliform
GREEN if coliform
coliform- ecoli feca matter |
|
|
Term
| macconkey selects and differentiates for |
|
Definition
selects- gram -
differentiates:: lactose fermenters and non lactose fermenters
coliform/noncoliform
* test nosocomial infections due to hospital like ventilator associated pneumonia
RED if coliform |
|
|
Term
| what tests nosocomial infections like VAP |
|
Definition
|
|
Term
| which tube would have cracks seen due to gas production |
|
Definition
facultative anaerobe
aerotolerant anaerobe |
|
|
Term
| catalase distinguishes what |
|
Definition
gram positive cocci
h202> h20 and oxygen |
|
|
Term
| oxidase disttinguishes what |
|
Definition
|
|
Term
| does staphylococcus contain catalase |
|
Definition
|
|
Term
| does enterococcus contain catalase |
|
Definition
|
|
Term
| what is the final enzyme of ETC |
|
Definition
| oxidase (reduces O2 to H2O) |
|
|
Term
| will aerobic have oxidase |
|
Definition
|
|
Term
| what is blood agar....selective or diff |
|
Definition
|
|
Term
| pink cells with green stained structure |
|
Definition
|
|
Term
| what is the purpose of performing an isolation streak plate |
|
Definition
| to obtain a pure culture or to determine if a culture is pure |
|
|
Term
| two characteristics of a hypothesis |
|
Definition
| must be falsifiable, makes a prediction between 2 variables |
|
|
Term
| Students commonly confuse Saccharomyces cerevisiae and Staphylococcus Aureus when viewed on a microscope slide. How could you microscopically differentiate S. Cerevisiae and S. Aureus? |
|
Definition
| S. cerevisiae will be LARGER |
|
|
Term
| Considering the Gram stain technique, what would you observe if you decolorized too much? |
|
Definition
|
|
Term
|
Definition
| multiple dilution factors for all tubes (by adding exponents) |
|
|
Term
| oxidase presence causes what |
|
Definition
|
|
Term
| ecoli is a _________ ____________ |
|
Definition
|
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