Bacterial Growth Patterns
Bacterial growth patterns and the effects of environmental factors on properties of colonies
ERIC LI Abstract In this experiment we work with different types of bacteria and experiment with their different properties and how they grow in certain situations. Different samples of bacteria cultures were gathered from different places such as the mouth, shaded mulch, and from the table top. The samples were collected by using a cotton swab and swiped onto a petri dish filled with nutrient agar. The bacteria were then left to grow on their own in a relatively well shaded area. As a control, a cotton swab that had nothing on it was used. It was recognized that different types of bacteria exist in different environments and grow in different ways compared with one another. As was discovered, the human mouth generally holds brightly colored bacteria varying from red to yellow that grow in a disc shape with no discernible repetitions or rings while other areas such as table tops and dirt had more darkly colored cultures forming in alternating rings of light and dark brown or gray. In addition, given the time available to grow, the average culture grew to a size of 1 cm in diameter ranging from 0.7 to 1.4 cm. Most cultures were found to be circular in shape thus implying constant growth in all directions. Knowing the different types of growth patterns will allow future doctors and medicinal practitioners to better know how to recognize certain bacterial growths and infections.
Introduction In the field of medicine today discerning different bacterial infections from one another is an important technique for doctors and medical practitioners. The difference in growth patterns of bacteria allows scientists to distinguish different bacteria from one another, especially when symptoms of infections are unclear. The experiment also gives information on how to control bacterial growth in the case of developing antibiotics and other medicines. The method of collecting bacteria
ERIC LI Abstract In this experiment we work with different types of bacteria and experiment with their different properties and how they grow in certain situations. Different samples of bacteria cultures were gathered from different places such as the mouth, shaded mulch, and from the table top. The samples were collected by using a cotton swab and swiped onto a petri dish filled with nutrient agar. The bacteria were then left to grow on their own in a relatively well shaded area. As a control, a cotton swab that had nothing on it was used. It was recognized that different types of bacteria exist in different environments and grow in different ways compared with one another. As was discovered, the human mouth generally holds brightly colored bacteria varying from red to yellow that grow in a disc shape with no discernible repetitions or rings while other areas such as table tops and dirt had more darkly colored cultures forming in alternating rings of light and dark brown or gray. In addition, given the time available to grow, the average culture grew to a size of 1 cm in diameter ranging from 0.7 to 1.4 cm. Most cultures were found to be circular in shape thus implying constant growth in all directions. Knowing the different types of growth patterns will allow future doctors and medicinal practitioners to better know how to recognize certain bacterial growths and infections.
Introduction In the field of medicine today discerning different bacterial infections from one another is an important technique for doctors and medical practitioners. The difference in growth patterns of bacteria allows scientists to distinguish different bacteria from one another, especially when symptoms of infections are unclear. The experiment also gives information on how to control bacterial growth in the case of developing antibiotics and other medicines. The method of collecting bacteria
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