Table of Contents
What is Gram positive bacteria and gram negative bacteria?
Gram-positive bacteria do not have an outer cell membrane found in Gram-negative bacteria. The cell wall of Gram-positive bacteria is high in peptidoglycan which is responsible for retaining the crystal violet dye.
What is the difference between Gram positive and Gram negative bacteria quizlet?
Present in both; in gram negative bacteria, the peptidoglycan layer is thin, while those in gram positive is thick. Both gram-negative and gram-positive contain this.
How do scientists distinguish between Gram positive and Gram negative bacteria?
The Gram stain procedure distinguishes between Gram positive and Gram negative groups by coloring these cells red or violet. Gram positive bacteria stain violet due to the presence of a thick layer of peptidoglycan in their cell walls, which retains the crystal violet these cells are stained with.
Why Gram positive bacteria is more sensitive than Gram negative bacteria?
Gram-positive bacteria are more sensitive to penicillin than Gram-negative bacteria because the peptidoglycan is not protected by an outer membrane and it is a more abundant molecule.