Question

Macconkey agar selects for which group of bacteria? explain. macconkey agar media differentiates between enteric bacteria based on what biochemical reaction? explain. if the organism is
e.coli, what would you see on your plates? explain. if the organism(s is/are other enterics, what would you see on your plate? explain.

Answer 1

Initially address, Gram-negative in light of the fact that the precious stone violet restrains the development of gram-positive. 
Second question, Fermentation: the blend of carb lactose, bile salts, and pH turn it unbiased red since they are enteric and age lactose 
Third, we would see the development since it is gram negative microbes. 
Fourth 
1. coliform microbes (pink settlements in light of the fact that the pH is brought down and they are lactose fermenters) 
2. Looseness of the bowels typhoid, and paratyphoid bacilli (tan and straightforward provinces since they are non-fermenters)