How to Do a Gram Stain Biology Lab Techniques

Gram staining is a method of staining used to distinguish and classify bacterial species into two large groups (grampositive and gramnegative). The name comes from the Danish bacteriologist Hans Christian Gram, who developed the technique. 00:00 Gram Stain description 00:37 Heatfixation 00:53 Reagents description 01:05 Crystal violet application 01:30 Lugol s reagent application 01:52 Ethanol, Acetone wash 02:19 Safranin application 02:41 Drying 02:44 Microscopic observation Video produ