Gram staining: Principle, Requirements, Procedure and Microscopic Examination
Gram staining is a differential staining technique that is used for microscopic examination of bacteria. In differential staining, specimen is subjected to a series of […]
gram-positive bacteria
Differences between Gram positive and Gram negative bacteria
S.N Gram positive bacteria Gram negative bacteria 1. They retain the color of crystal violet and stain dark blue or purple. They take the color […]
Toxins and differences between endotoxins and exotoxins
The chemical substances produced by microorganisms in order to harm the host and cause diseases in them are called toxins. The ability of a microorganism […]