It's pink, since it can use lactose as it's nutrition source
Bap & mac only
the most recognized media for isolation of actinomycetes are starch casein and oat meal
By definition, a selective medium is a medium that contains a substance that inhibits the growth of some types of bacteria but doesn't affect the growth of other types of bacteria (this is may be required when you want to isolate a specific type of bacteria from a specimen that contains other types of bacteria). Nutrient agar medium contains the following ingredients: peptone, meat extract, yeast extract, NaCl and agar. Nutrient agar doesn't contain any inhibitory substance for bacteria, therefore, it is not considered selective and instead it is called all-purpose medium. Answer An alternative definition of selective media is a media which allows the growth of some organisms whilst supressing the growth of others. Whilst nutrient agar contains no ingredients designed to supress growth, the composition is not suitable for the growth of certain microbes (fastidious bacteria) and so can be considered selective on this basis. For a case example try Mycobacterium lepraewhich is generally culitaved on living tissue rather than agar media. Nutriet agar is therefore selective in that certain microbes cannot grow on it. However, nutirent agar is generally considered the least selective media avalible. The confusion in answering the question arises in the catagories used to classify media in textbooks. Nutirent agar is suitable for the growth the vast majority of culturable bacteria, (however, it is estimated that only around 5% of the worlds bacteria can be cultured in the lab at present). As nutirent agar is sutiable for the growth of so many bacteria it may be catagorised as an "all purpose" media due to its suitablity for many different applications. However to researchers investigating new areas it is important for "all purpose" not to be confused with "all bacteria" media due to its selectivity. In summary, nutrient agar is selective but is classified "all purpose" as it is designed to allow the growth of many different species.
No there has not been a version for the Mac.
The Texas Instruments TI-Nspire CX II CAS Color Graphing Calculator with Student Software (PC/Mac)is currently (as of 2021) the most advanced calculator in the world, (aside from supercomputers)
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MacConkey agar is yellow (due to the lactose in the agar). When an organism consumes the lactose, the agar turns purple. Purple indicates a positive test. If the organism doesn't use the agar, the agar stays yellow.
It's a differential agar used to differentiate between lactose fermenters and non-lactose fermenteing bacteria. Chemical composition of Mac Conkey agar Peptone 20.0g Trehalose 10.0g Bile salts(Difco) 1.5g Sodium Cloride 5.0 Neutral Red 0.05g Crystal Violet 0.001 Agar 15.0g Distelled water 1.0 liter pH: 7.4±0.2 (25 °C)
MacConkey Agar plate
Lactose is used as a selective nutrient in the agar as not all microbes can process lactose
Bap & mac only
Physical types of media include those that are liquid, such as broths and milk, those that are semi solid, and those that are solid. Kristian F.
It's a differential agar used to differentiate between lactose fermenters and non-lactose fermenteing bacteria. Chemical composition of Mac Conkey agar Peptone 20.0g Trehalose 10.0g Bile salts(Difco) 1.5g Sodium Cloride 5.0 Neutral Red 0.05g Crystal Violet 0.001 Agar 15.0g Distelled water 1.0 liter pH: 7.4±0.2 (25 °C)
the most recognized media for isolation of actinomycetes are starch casein and oat meal
It is orange.
Green :)
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