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MicrobiologyLab12
Questions about "Gram Stain"
| Question | Answer |
|---|---|
| A preparation made by 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 ________ (type) stain. | differential |
| All members of the genus Escherichia would be expected to be Gram-________. | negative |
| Endospores usually appear ________ in a complete Gram stain. | clear or colorless |
| True or false: Gram-positive and Gram-negative cells have the same color after application of the first two Gram stain reagents. | True. |
| Generally speaking, endospore-forming bacteria would be Gram-________. | positive |
| Gram reactions are reliable only for cultures ______ hours old or younger. | 24 |
| Unless the procedure specifically indicates otherwise, Gram stain smears are first ________ ________. | air dried |
| A smear when properly made should look (like milk/very dense/faintly cloudy). | faintly cloudy |
| The most critical step in making the Gram stain is the application of the ________. | decolorizer |
| A culture that is too old may appear Gram-________ when stained. | variable |
Created by:
NeuroHeart
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