Gram-Negative Effect On Mac Agar
301 Words2 Pages
Motility is an important taxonomic tool helps the bacteria find the quality and the quantity of the chemicals in its environment, which will help the bacteria prevent the chemicals if they are harmful to them and swim toward the chemicals if they are useful. MAC agar is a selective and differential media; it has the ability to select the Gram-negative bacteria and differentiates the bacteria that can ferment lactose. MAC agar has bile salt, lactose, crystal violate, peptone and PH indicators. The crystal violet and bile salts in this agar prevent the growth of the Gram-positive bacteria. Eosin Methylene Blue (EMB) agar is both a selective and differential agar, it has just lactose, Eosin and Methylene Blue. The dye Methylene Blue is the reason