7. Prokaryotic Cell Structures & Functions

If you forget to use the decolorizer during a Gram stain, which cell type(s) will appear purple under the microscope?

Which of the following features distinguishes the cell wall of Gram-positive bacteria from that of Gram-negative bacteria?

Which structure accounts for the different results of the Gram stain in Gram-positive and Gram-negative bacteria?

The outcome of the Gram stain is based on differences in the cell's _______.

The Gram stain works because of differences in the ________ of bacteria.

The Gram stain differentiates bacteria based upon structural differences of the bacterial cell wall. Which of the following best describes the key difference between Gram-positive and Gram-negative cell walls?

Why are penicillins often more effective against gram-positive bacteria than gram-negative bacteria?

During the Gram stain procedure, which type of cells decolorize when the alcohol is applied?

The outcome of the Gram stain is based on differences in the cell's:

Which component is found in the external covering of Gram-positive cells, but not in Gram-negative cells?

After the Gram staining procedure, Gram-positive cells appear ______.

Which structural feature is present in Gram-positive bacterial cell walls but absent in Gram-negative cell walls?

Which of the following bacteria are not reliably identified using a Gram stain?

Bacteria growing on eosin methylene blue (EMB) agar will most likely be Gram:

What is the appearance of Gram-positive bacteria after the addition of the counterstain (safranin) during the Gram stain procedure?