Bacteria Growth
Bacteria describe a group of microorganisms that can be found distributed through the air, soil, water, and on a variety of surfaces handled by human beings. Some bacteria have been known to cause disease. To further study these unicellular organisms, laboratory cultures are made and measured for activity and growth. Bacterial growth occurs at an exponential rate; e.g. some bacteria doubles every 20 minutes. This means reproduction occurs rapidly, and the rate of growth can be calculated by recording the number of bacteria over short intervals of time. When grown in a Petri dish, bacteria can be seen in small colonies, and the area of these colonies can be recorded as a representation of the growth.
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