Quiz on Gram Staining

Who first introduced the Gram staining technique in 1882?

• Hans Christian Gram

• Manju Singh

• Mohsin Amin Mir

• Amandeep Kaur

What color do gram-positive bacteria stain during the Gram staining process?

• Red

• Yellow

• Pink

• Purple

What is the most crucial staining in microbiology and the first step in differentiating bacteria?

• Acid-fast staining

• Gram staining

• Endospore staining

• Negative staining

What is the purpose of decolorization in the Gram staining process?

• To add color to the bacteria

• To wash out all the stains

• To enhance the staining efficiency

• To increase the speed of staining

Which type of bacteria have thin layers of peptidoglycan and stain red/pink during Gram staining?

• Acid-fast bacteria

• Gram-negative bacteria

• Gram-positive bacteria

• Gram-variable bacteria

What is the main purpose of Gram staining in microbiology?

• To identify viruses

• To differentiate bacteria

• To study fungi

• To analyze parasites

Which staining technique involves staining with crystal violet, iodine, decolorization, and counterstaining?

• Acid-fast staining

• Negative staining

• Endospore staining

• Gram staining

What is the color of gram-negative bacteria after the decolorization step in Gram staining?

• Pink

• Red

• Purple

• Blue

What is the correct interpretation of gram-positive bacteria in a Gram-stained specimen?

• Green

• Yellow

• Dark purple

• Pink or red

What is one of the potential areas of research and innovation on Gram staining mentioned in the text?

• Studying astronomy

• Exploring underwater ecosystems

• Developing rapid and portable Gram staining methods

• Creating new fashion trends