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Selective media favor the growth of particular microorganisms. Bile salt or dye like basic fuschin and crystal violet favor the growth of gram-negative bacteria by inhibiting the growth of gram positive bacteria. Maconkey agar is widely used to grow E.coli and related bacteria. Differential media are media that distinguish among different groups of microbes and even permit tentative identification of microorganisms based on their biological characterstics. Blood agar is used to culture of bacteria from human throat. Mckoney agar is both differential and selective media.
Wiki User
∙ 15y ago
Wiki User
∙ 11y agoIt is both selective and differential...selective because it allows some microorganisms to grow while preventing others and differential because the reaction of the microorganism to the media will cause the media or bacteria to change color. This color change comes from the fermentation of certain chemical compounds such as lactose and/or manitol.
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Is the media for oxidase test selective or differential?
media used for oxidase test is non selective media
Is tryptone broth differential or selective media?
differential.
Compare simple media with differential media?
Differential media or selective media is an agar that has certain nutrient to grow certain microbes. Simple media is an agar that has simple sugars that many normal microbes thrive in.
Why can mannitol salt agar and EMB agar be described as both selective and differential media?
it is selective because only a salt tolerant can grow. 7.5 nacl it has diffrential properties also. if mannitol formentors turns yellow staphlococus aureus; but if it has no change then its a nonpathogenic staphlococci (s. edermis)
How could the use of a medium which is both selective and differential be justified?
The use of a medium that is both selective and differential can be justified in a few ways. They allowe the growth of organisms that can be of interest. The media can also be quite useful diagnostically in medical settings.
Is a tsa agar selective or differential?
its a selective media
Is the media for oxidase test selective or differential?
media used for oxidase test is non selective media
Is tryptone broth differential or selective media?
differential.
What is the principle of selective media?
Scientists in a lab use selective media and differential media to identify or isolate organisms. Selective media allows only certain types of organisms to grow.
Is Differential media a type of culture media?
what do you mean? I would say yes. The main types of culture media are Enriched media Differential media Selective media Characterisation media.
Compare simple media with differential media?
Differential media or selective media is an agar that has certain nutrient to grow certain microbes. Simple media is an agar that has simple sugars that many normal microbes thrive in.
Why can mannitol salt agar and EMB agar be described as both selective and differential media?
it is selective because only a salt tolerant can grow. 7.5 nacl it has diffrential properties also. if mannitol formentors turns yellow staphlococus aureus; but if it has no change then its a nonpathogenic staphlococci (s. edermis)
What is blood agar tellurite medium?
It is a SELECTIVE DIFFERENTIAL media used for the groth of Corynebacterium diphtheria.
What is non selective media?
Non-selective is when we use agar for bacterial growth in general. Mean not to differentiate between them but just to see their colonies and growth. TSA and Chocolate agar are nonselective.
How could the use of a medium which is both selective and differential be justified?
The use of a medium that is both selective and differential can be justified in a few ways. They allowe the growth of organisms that can be of interest. The media can also be quite useful diagnostically in medical settings.
Why cant you use the same selective and differential media for staphylococci and streptococci?
Selective and differential media are designed to support the growth of specific types of bacteria while inhibiting the growth of others. Staphylococci and streptococci have different nutritional and metabolic requirements, so a single selective and differential media may not provide the necessary conditions for both types of bacteria. Each type of bacteria may require specific nutrients, pH levels, or antimicrobial agents for optimal growth and differentiation, which cannot be provided by a single media formulation.
What is enrichment medium and how does it differ from differential and selective media?
Selective media is one that grows only certain microorganisms while inhibiting (or preventing) others from growing, that is to say , the media has certain chemicals that allow one organism to grow but another organism cannot grow with those ingredients in the media, thus, is selective for the organisms that can grow in that media. Therefore, most commonly grows only one type of organism. Differential media is one that distinguishes one microorganism from another, it can grow more than one microorganism, but depending on how each organism reacts to the media (like turns red) it differentiates from another microorganism. In this type of media if you are trying to distinguish between 2 types of microorganisms, both should grow but they will have different reactions to the media, and thru their visible reactions you can tell them apart (differentiate them).
