another word for 'culture medium'?


Question:
OOPs - spelled it wrong before - sorry

Answers:
Agar.

Other Answers:
AGAR AGAR.

I'VE ALWAYS READ AGAR AGAR AND NOT AGAR.

BASICALLY ANY POLYSACCHARIDES WORK AS CULTURE MEDIUM.

IT IS THE MEDIUM IN WHICH YOU DEVELOP THE CULTURE OF BACTERIUM. It depends on what kind of culture is being ordered. The are many culture mediums that are used for different specimens and/or different organisms. Most plated media is based on Agar, a gelatin like substance where the specime is spread on the surface then icubated to see what grows. The most common are blood, chocolate and MacConkey. Most Organisms will grow on Blood plates. This is an agar base with 5% sheep red blood cells. Chocolate Agar plates are called such because they look like chocolate but they have none, these are agar plates with hemolyzed sheep blood, that is the cells are broken to release their hemoglobin and other nutrients. Chocolate plates are especially useful for isolating Neisseria species and Haemophilus species as they don't grow on blood plates, these organisms lack the enzyme required to lyse blood cells themselves. MacCinkey plates contain an antibiotic against gram positive organisms so they are for the growth of gram negative such as E. coli. There are several other plate and tube media for other applications. Special media for anaerobic bacteriea that cannot survive when exposed to oxygen, media that is specialized for mycobacterium species such as tuberculosis and thayer martin that is specifally for neiserria gonnorhea. Certain sets of media are used for certain specimens, a throat culture will normally get a blood and chocolate plate, urine is normally cultured on blood and macconkey. Cervical will be plated on blood, thayer-martin, macconkey and maybe two or three others.




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