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Nutrient agar is a general-purpose, nutrient medium used for the cultivation of microbes. It is frequently used for isolation and purification of cultures. As we are using it here, it can also be used as a means for producing the bacterial lawns needed for antibiotic sensitivity tests.utrient agar consists of heat-stable digestive products of proteins (called peptones) and beef extract. Both of these provide amino acids, minerals, and other nutrients used by a wide variety of bacteria for growth.
Some bacteria can be beneficial while others can be harmful. Pathogen bacteria are sometimes referred to as germs. Bacteria can be grown (cultured) in petri dishes with nutrient agar. Nutrient agar is a gelatin substance that contains the nutrients necessary for growing bacteria.Individual bacteria are tiny organisms which can only be seen through a powerful microscope.of2 7 th LAB âGrow Bacteriaâ LAB: Growing Bacteria Name _________________________ period ___ Date ____________________ Introduction Bacteria are tiny micro-organisms that can be found almost anywhere. A host of different types of bacteria live within your body.