Saturday, April 24, 2010

NEED HELP!! Bacteria question!????

k so we collevted samples of bacteria around our school for our lab..a nd one of the question is that:


1) Suppose after incubation a quadrant of the nutrient agar showed no evidence of bacterial growth. Can one conclude that the sampled environment is sterile? Explain 2 possible reasons for no growth in the quadrant?





2) Although we do not know if the bacteria you collected are harmless or harmful, reflect on your daily life inthe school. What, if anything, you will do differently after seeing the growth of bacteria you obtained from your sample locations? Why?





kk thnks

NEED HELP!! Bacteria question!????
no you cannot assume that the sampled environment is stable. One reason there could have been no bacterial growth is because the culture that you cultivated the bacteria on didn't have the necessary nutrients to support the bacterial life. Another reason is that maybe the sample of bacteria taken wasn't significant enough to show visible growth (this explination i'm not sure of).....for number two....it just seems like an opinion question....will you start using paper towels to touch doorknobs...carry around antibacterial gel just in case the bacteria you come in contact with is harmful....just what preventative measures you plan on taking
Reply:neat freak


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