WorksheetsStaining
Total questions: 20
Worksheet time: 11mins
Which of the following is a mordant
Methylene blue
Iodine
Crystal Violet
Safranin
Acid Fast staining and gram staining are both considered to be
Differential stains
Selective stains
Simple stains
Negative stains
Which Stains are used in the endospore staining process
Carbolfuchsin
Malachite Green
Crystal Violet
Safranin
Heat fixing is important because it __________.
kills the microorganism
makes the microorganism adhere to slide
permit microorganism to receive stain
all of the above
This bacterial prepataion technique allow you to observe microorganisms motility, using a special slide called "depression slide"
(a)
Simple staining technique using positively charged dyes/stains.
simple positive
simple negative
Simple staining technique that leaves the cells clear and unstained.
simpple positive staining
simple negative staining
This simple staining technique will result into all colored bacteria.
simple positive staining
simple negative staining
Acid fact staining technique differentiates species of ____________.
Escherichia
Streptococcus
Mycobacterium
Pseudomonas
Which is applied first in acid fast staining?
safranin
methylene blue
malachite green
carbolfuchsin
identify this image
acid fast bacteria
non acid fast bacteria
When doin Anthony's stain method, ____________ serves as decolorizing agent and counterstain.
20% copper nitrate solution
25% copper sulfate solution
25% copper nitrate solution
20% copper sulfate solution
Which method is used in this image?
Ziehl-Neelsen method
Anthony’s stain method
India Ink method
What method is used in endospore staining?
India ink method
Ziehl-Neelsen method
Schaeffer-Fulton`s method
Anthony’s stain method
What is the primary stain used in endospore staining?
(a)
Which of the following is the CORRECT order of the steps of a Gram stain?
Primary stain → Decolorizing agent → Mordant → Counterstain
Counterstain→ Mordant → Decolorizing agent→ Primary stain
Primary stain→ Mordant→ Decolorizing agent→ Counterstain
Primary stain→ Counterstain→ Decolorizing agent→ Mordant
