Micro 206 Lab Final- ASU Questions and Verified Answers, 100% Guarantee Pass (Latest 2025) Why do we stain microbes? - Correct Answers ✅Increase Contrast What chemical attribute do basic stains have? - Correct Answers ✅A cation What are some basic stain examples? - Correct Answers ✅Methylene blue, crystal violet What chemical attribute do acidic stains have? - Correct Answers ✅An anion What is an example of an acidic stain? - Correct Answers ✅Nigrosin What is the biggest part of smear prep? - Correct Answers ✅Heat fix the bacteria What is peptidoglycan? - Correct Answers ✅bacteria specific cell wall component What is a gram positive bacteria? - Correct Answers ✅thick cell walls can withstand higher internal pressure 1 / 3
Micro 206 Lab Final- ASU Questions and Verified Answers, 100% Guarantee Pass (Latest 2025) What color do gram positive bacteria stain? - Correct Answers ✅purple What is gram negative bacteria? - Correct Answers ✅Thin layer of peptidoglycan, have outer membrane What color do gram negative bacteria stain? - Correct Answers ✅pink What is the primary stain in gram staining? - Correct Answers ✅1st stain, cystal violet What is the mordant in gram staining? - Correct Answers ✅color fixative, Gram's iodine What is the decolorizer in the gram stain? - Correct Answers ✅removes primary stain from gram negative cells, alchohol What is the counterstain in gram staining? - Correct Answers ✅second dye for gram negative cells, safranin What are the steps in gram staining? - Correct Answers ✅crystal violet, iodine, alcohol, safranin 2 / 3
Micro 206 Lab Final- ASU Questions and Verified Answers, 100% Guarantee Pass (Latest 2025) What does acid fast stain for? - Correct Answers ✅Mycolic Acid What genus is mycolic acid for? - Correct Answers ✅Mycobacterium What is the primary stain in acid fast? - Correct Answers ✅Carbolfusion What is important about the primary acid fast stain? - Correct Answers ✅You do it over steam so the mycolic acid melts What is the decolizater in acid fast? - Correct Answers ✅Acid alchohol What is the secondary stain in acid fast? - Correct Answers ✅methylene blue What color do acid fast cells stain? - Correct Answers ✅pink
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