Cell walls are rigid structures surrounding plant, fungal, and bacterial cells, providing support, protection, and regulating cell shape and osmotic pressure. The chemical structure and organization of cell wall in different groups varies considerably. The bacterial cell wall is a protective outer layer made of peptidoglycan, providing structural support. It […]
Continue ReadingCategory Archives: Microbiology
Difference between Bacterial Endotoxin and Exotoxin – Comparison Table
Endotoxins vs Exotoxins Microbial toxins are noxious substances produced by the microorganisms such as bacteria and fungi in order to promote their pathogenicity and disease-causing process. The microbial toxins usually destroy the host tissue and they facilitate the infection by disabling the host immune system. A disease that results from […]
Continue Reading
Difference between Sterilization and Disinfection – Comparison Table
Sterilization vs Disinfection Disinfection vs Sterilization: Microbes are present in almost all types of habitats. They are so ubiquitous that the presence of many microbes causes undesirable consequences such as food spoilage and diseases. Thus in many situations, it is mandatory to kill the microbes or inhibit their growth to […]
Continue Reading
Difference between the Cell Wall of Gram Positive and Gram Negative Bacteria
Most of the bacterial cells are surrounded by a thick rigid cell wall. The cell wall provides shape to the cell and protects the bacteria from changes in the osmotic pressure. Peptidoglycan (murein) is the principal component of the bacterial cell wall and it is responsible for the shape and […]
Continue Reading