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The plates you are using for this lab will be autoclaved to completely sterilize them. The...

The plates you are using for this lab will be autoclaved to completely sterilize them. The measures taken to disinfect the tabletops (the source of organisms in plate 2and 3) are not as extreme. Why?
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Answer #1

ANSWER: Plates should have higher organism growth than bench tops, because the bench tops have no media.Tabletop- less nutrients, less density Petri dishes- high nutrients, high density.

The agar plates were used to grow bacteria on them they have become a bio-hazard. The tabletop is easily disinfected with alcohol or many other sterilizing agent. Depending on which the agar plate is made of it may be reusable and if you dont want them to be contaminated for the next experiment they need to be autoclaved.

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