it provides the nutrients necessary for the a few bacterial cells to survive and rapidly reproduce, resulting in the efficient cultivation entire colonies.
Why is agar use to cultivate bacteria?
Bacteria can be grown in liquid or on solid gel plates.
Plates allow isolation and visualization of various bacteria.
Liquid is good for growing up to obtain material.
Processed agar itself does not contain nutrients.
Agar or agarose is a polysaccharide from kelp.
It forms a gel after heating and cooling, makes a good solid surface or matrix for growing various things.
Is fairly inert.
However nutrient components to support growth
can be added with the agar when making the media.
The agar still forms a gel.
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