If the bacterial cells were viewed immediately after crystal violet was applied during the Gram stain procedure, gram-positive cells would be purple but gram-negative cells would be colorless.

Question

Quizplus · Accepted Answer

Both gram-positive and gram-negative cells would appear purple after the application of crystal violet because it is the primary stain that colors all cells, and the differentiation occurs after the application of the iodine, decolorizer, and counterstain steps.

If the Bacterial Cells Were Viewed Immediately After Crystal Violet