A QUIZ ON GRAM STAINING TECHNIQUE
QUES 1. The Gram staining technique was developed by
H. A. Gram
N. C. Gram
H. C. Gram
A. H. Gram
QUES 2. Mordant used in grams staining is
Crystal Violet
Iodine
Safranine
All of the Above
QUES 3. Gram staining is an example of
Simple Staining
Capsule staining
Differential Staining
None of the Above
QUES 4. The order of Dyes, Mordant & Decolorizer in Gram-staining procedure is
Iodine solution, Crystal Violet, Safranine, Alcohol
Alcohol, Crystal Violet, Iodine solution, Safranine
Crystal violet, Iodine solution, Alcohol, Safranine
Not Mentioned here
QUES 5. The percentage of alcohol used in Gram’s Staining is
75%
50%
80%
90-95%
QUES 6. The action of alcohol during Grams Staining is
It adds color
Allows the color
Decolorizes the cells
None of these
QUES 7. Staining material of gram positive bacterium is
Haematoxylin
Crystal Violet
Safranine
Eosin
QUES 8. The Gram stain differentiates between bacteria based on the composition of their
Cell Wall
Cell Membrane
Nucleus
Arrangement of Flagella
QUES 9. Gram Staining imparts … & … Color to the Gram positive & Gram negative bacterial cells, Respectively.
Blue & Yellow
Pink & Purple
Purple & Yellow
Purple & Pink
QUES 10. The most commonly used combination of stains in the Gram staining is
Crystal violet & Carbol fuchsin
Safranine & Methylene Blue
Crystal Violet & Safranine
Methylene Blue & Malachite Green