WebIn your own words, explain why EMB is a differential and selective medium. EMB is a differential medium because the agar contains dyes that inhibit the growth of gram positive organisms and that form a precipitate at low pH. EMB is a selective medium because it selects for the growth of gram-negative organisms. WebSelective media are normally used as agar media and are widely used for the isolation of desired types of microorganisms from a mixed population. Differential media- The media, which allow differentiation of two groups of organtsms on the basis of their growth and cultural characteristics are called differential media. These media are prepared ...

Lab 10 - Selective and Differential Media - YouTube

WebDifferential Media. Isolation of bacteria is accomplished by growing ("culturing") them on the surface of solid nutrient media. Such a medium normally consists of a mixture of protein digests (peptone, tryptone, etc.) and inorganic salts, hardened by the addition of 1.5% agar. ... Selective media contain ingredients that inhibit the growth of ... WebJan 22, 2024 · Selective and differential Media Is the media that contain sugar as example the lactose, that differentiate between the bacteria who can ferment lactose, and from the bacteria who cannot. In addition, this media contain an inhibitory substance as (bile salt) that inhibit the growth of gram (+ve) m.o. and enhance, the growth gram (-ve) m.o. … slugterra slug it out 2 apk download

SELECTIVE AND DIFFERENTIAL MEDIA - Western Washington …

WebThis is a medium that is both selective and differential. The high salt concentration (7.5%) is the selective ingredient. ... Sulfur Indole Motility Media (SIM) This is a differential medium. It tests the ability of an organism to do several things: reduce sulfur, produce indole and swim through the agar (be motile). ... a precursor of 2,3 ... WebSelective and differential media is extremely useful when examining mixed bacterial cultures since it provides: a simple way to "screen out" certain bacterial species some … WebDec 9, 2024 · The advantage of using selective media is the ability to control what will and will not grow on a particular culture plate or petri dish. Selective media can include dyes and other chemicals such as antibiotic types, specifically neomycin, that prevent the growth of some types of cells. This gives biologists the ability to control what types of ... slugterra slug it out 2 play free