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Micro lab 12
Micro 204, gram stain
| Question | Answer |
|---|---|
| A preparation of mixing a loopful of water and a bit of agar slant culture on a glass slide is called a | smear |
| the gram stain is an example of a X stain. | differential |
| All members of the genus Escherichia would be expected to be gram X. | negative |
| Endospores usually appear X in a completed gram stain. | clear |
| If your Staphylococcus aureus cells appear pink after gram staining the most likely cause was X. | over decolorizing |
| Gram positive and gram negative cells have the same color after application is the first two gram stain reagents. T or F | true |
| Generally speaking endospore forming bacteria stain gram X. | positive |
| gram reactions are reliable only for cultures X hours old or younger. | 24 |
| A smear when properly made should look X. | faintly cloudy |
| The most critical step in making the gram stain is the application of the X. | crystal violet |
| A culture that is too old may appear gram X when stained. | variable |
| Gram positive bacteria stain | purple |
| Gram negative bacteria stain | pink |