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Lab q6 Gram Stain
Question | Answer |
---|---|
The Gram stain is a differential stain. | TRUE |
The Mordant used in the Gram stain is Safrinin. | FALSE |
All bacteria can be successfully Gram stained. | FALSE |
In a successful spore stain the endospores appear green. | TRUE |
The counterstain used in the gram stain is crystal violet. | FALSE |
You cannot over decolorize.â | FALSE |
Mycobacterium are Gram Negative. | FALSE |
Gram negative cells are pink/red. | TRUE |
Acid fast cells are pink/red. | TRUE |
A lab tech is given a heat fixed smear to gram stain. He stains with crystal violet for 30 seconds and washes the slide. He then adds iodine for one minute and washes. Next he adds the decolorizer for 45 seconds. After rinsing the slide, he stains with s | No, decolorize for 5-15 sec, see also question 6. |