Gram-positive bacteria are colored purple when the gram stain binds to __________, which composes their thick cell wall
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This substance is responsible for the purple color when the gram stain binds to it. The substance is called peptidoglycan. Show more…
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Gram-positive bacteria _____. a. have a thick cell wall, which retains crystal violet dye b. contain teichoic acids in their cell walls c. appear purple after Gram staining d. all of the above
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When performing a Gram stain on a mixture of bacteria Select one: a. Gram positive cells only stain in the presence of Gram negative cells because of lateral gene transfer b. Gram positive cells stain red because they have a thin peptidoglycan layer and retain crystal violet c. Gram positive cells stain purple because they have a thick peptidoglycan layer and retain crystal violet d. Gram positive cells stain red because they have a thick peptidoglycan layer and retain crystal violet e. Gram positive cells stain purple because they have a thin peptidoglycan layer and retain crystal violet
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