Type of Entry:
Inquiry Lab with field experience
9-12 biology, environmental science, AP biology
One class period to prepare, pour and label petri dishes. One class period to collect samples. One week to make observations on a daily basis.
In order to do this lab the following items listed below are required.
The following microenvironments are some possibilities to explore.
Notes and Helpful Links:
Enterobacter aerogenes: Gram negative rods 0.5 to 0.8 by -1.0 to 2.0 um occuring singly. Motile colonies are thick, white, moist, round, smooth, entire. Metabolism fermentative. Facultative anaerobes. Acid and gas produced from most carbohydrates, including glucose and lactose. Gelatin is slowly liquefied by most strains. Indole is usually not produced. Citrate and acetate can be used as sole carbon source. The Voges Proskaur test is usually positive; Catalase positive; oxidase negative. Source found in the feces of man and other animals, sewage, soil, water, and dairy.
"Awareness Square" refers to using a towel soaked in antiseptic solution, such as lysol, designating the work area.
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