culturing microorganisms

    Cards (6)

    • bacteria are grown in a 'culture medium'
    • bacteria can be grown in a nutrient broth solution or solid agar jelly
    • in school, cultures of microorganisms are not kept above 25 degrees celsius because harmful pathogens are more likely to grow above that temperature
    • petri dishes and culture medium must be sterilised to kill any unwanted organisms
    • if an inoculating loop is used to transfer the bacteria to the culture medium, it should be sterilised first by passing it through a hot flame
    • to figure out the effectiveness of a certain antibiotic, calculate the sizes of the inhibition zones on the petri dish
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