What Are Culture Media? | Culture
medium is a solution of nutrients that are
necessary for bacteria growth. The medium needs to contain a source of carbon
and nitrogen in order for the bacteria to grow. If agar is added to the
solution, the medium will be semi-solid at room temperature and can be in
the form of a culture plate or slant. |
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Agar is made from seaweed so that is the reason for the awful odor when heating media. | ||
If agar is not added then the culture medium will remain liquid and it is called a broth. |