Yes, when agar contains all the nutrients the cells need to thrive, it can easily be used as an energy source. Nutrient agar plates are used to grow bacteria in laboratories.
Do bacteria actually eat agar?
It is a polysaccharide; why not.
Reply:No the eat the nutrient that is added to it
Reply:no, but i heard that microorganisms tat live in car gas can run an engine by eating sugar or something with high concentration
Reply:agar is just a medium. when the bacteria grow and multiply from the nutrients in the agar. they will slowly die when all the nutrients are gone and only agar is left. this is exhibited in laboratory culture medium. if you want to keep a specific bacterial sample. you have to keep transfering to new medium. there are really dangerous bactria in regulated laboratories for purposes of researches.
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