Biochemical tests for identification of Gram-positive bacteria
Gram-positive bacteria retain the crystal violet dye by its thick layer of peptidoglycan and appear purple color when observed under the microscope after performing Gram... Read more
Tag: catalase test
Biochemical tests for identification of Gram-negative bacteria
Gram-negative bacteria are the pink or red-colored bacteria when observed under a microscope after Gram’s differential staining technique. They do not retain the crystal violet... Read more
Biochemical Tests for the Identification of Bacteria: Types, Principle, Procedure, and Examples
Microorganisms undergo the metabolism process to maintain nutritional and functional cellular activities either catabolically or anabolically. Both processes occur simultaneously with the biochemical reaction which... Read more