| Feature | Gram-Positive | Gram-Negative | | :--- | :--- | :--- | | | Thick (20-80 nm) | Thin (8-10 nm) | | Peptidoglycan layer | Many layers | Single layer | | Outer membrane | Absent | Present (contains LPS) | | Color after Gram stain | Purple/Blue | Pink/Red | | Sensitivity to Penicillin | High | Low (due to outer membrane) | | Toxins produced | Exotoxins (e.g., tetanus) | Endotoxins (Lipid A) | | Example | Staphylococcus aureus | Escherichia coli |
Structure and function of the cell wall, plasma membrane, flagella, pili, and capsules. Microbiology Pdf Notes
Staphylococcus and Streptococcus species, including their toxins and associated diseases. Gram-Positive Rods: Bacillus , Clostridium , and Listeria . | Feature | Gram-Positive | Gram-Negative | |
Before diving into the content, let’s address the format. Why should you specifically search for instead of relying on standard textbooks or video lectures? Before diving into the content, let’s address the format
Important formulas, diagrams, and classifications are quickly accessible for reference [3]. Conclusion