Difference Between Gram Positive Bacteria and Gram Negative Bacteria
The difference between Gram Positive bacteria and Gram Negative bacteria is given below in tabular form:
| Characteristic | Gram Positive Bacteria | Gram Negative Bacteria |
|---|---|---|
| Cell Wall Composition | Thick layer of peptidoglycan | Thin layer of peptidoglycan |
| Outer Membrane | Absent | Present |
| Permeability | More permeable | Less permeable |
| Staining | Retains crystal violet stain in Gram staining | Does not retain crystal violet stain |
| Color in Gram Staining | Purple | Pink (after counterstaining with safranin) |
| Lipopolysaccharides | Absent | Present in the outer membrane |
| Teichoic Acids | Present | Absent |
| Sensitivity to Antibiotics | Generally more sensitive | Generally less sensitive |
| Toxins | Generally produce exotoxins | Generally produce endotoxins |
| Common Examples | Staphylococcus, Streptococcus, Clostridium | Escherichia coli, Salmonella, Pseudomonas |
Gram Positive Bacteria
Gram-positive bacteria are those that respond positively to the Gram stain test. This test is commonly used to classify bacteria into two categories based on their type of cell wall. Studying Gram-positive bacteria examples and cell wall composition provides valuable insights into their structural characteristics.
In this article, we will cover Gram-positive bacteria, their cell wall composition, examples, and more, in detail.
Table of Content
- What is Gram-Positive Bacteria?
- Gram-Positive Bacteria Diagram
- Gram-Positive Bacteria Examples
- Gram-Positive Bacteria Colour
- Gram-Positive Bacteria Cell Wall
- Characteristics of Gram-Positive Bacteria
- Gram-Positive Bacteria Shape
- Risk of Gram-Positive Bacteria
- Benefits of Gram-Positive Bacteria
- Difference Between Gram Positive Bacteria and Gram Negative Bacteria
- Gram Stains