Gram-positive bacteria differ from Gram-negative bacteria because Gram-positives

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Gram-positive bacteria have a different cell wall structure than Gram-negative bacteria, with a thicker layer of peptidoglycan. This thicker layer of peptidoglycan allows them to retain the crystal violet stain used in the Gram stain, appearing blue. This also makes them generally more susceptible to penicillin, as the antibiotic targets the peptidoglycan layer. Therefore, all of the above choices are correct.

Gram-Positive Bacteria Differ from Gram-Negative Bacteria Because Gram-Positives