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what is agar?

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Amy’s Answer

Agar is a certain mixture of medium chosen specifically to grow something like bacteria. It helps medical professionals to determine, for example, what kind of antibiotic to give to a patient. Once the bacteria grows, a variety of discs impregnated with antibiotic can then be used on the agar to show if there is a kill zone around the impregnated disk. This fact will tell the medical professional interpreting the results what was the best antibiotic to be used to kill the most bacteria (the most effectively), for example. I hope this helps a little.

Amy recommends the following next steps:

Read up on different types of agar, as there are many.
Go to a free medical library at a medical school and look up microbiology and agar types.
Go to your school library and look up microbiology research articles on agar types.
Thank you comment icon Loved reading this, thanks! Zeeshan
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fnu’s Answer

agar is commonly used in the laboratory to help feed and grow bacteria and other microorganisms
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Vinita’s Answer

Agar consists of polysaccharide which is obtained from algae. It comes as an amorphous powder. As mentioned in the above answers it is used to grow bacteria. The agar provides a base for growing bacteria and fungi. In research labs of biochemistry and related ones, we dissolve it in water along with other growth components boiled and poured onto dishes/tubes while hot. The agar-containing media solidifies like gelly once the temperature comes down to room temperature.
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Sydnie’s Answer

A mixture of two polysaccharides with high melting points. It is used as a growth medium for microorganisms.
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