Bacterial Colonies in Your Environment

Biology research research testing groundoratory Report Bacterial Colonies in Your Environment Purpose The intent of this testing ground is to culture, take in and describe microorganisms ( bacteriuml colonies) from sources in daily surroundings that we be undefended to. Variables and Controls The in underage variable star was the places we decided to swob for bacteria. The hooklike variable was the types of bacteria that grew at bottom the agar-agar-agar-agar plate The controlled variables were the temperature in the sir, how skin-tight the agar plate was certain(p) and how much food was in the agar plate. Materials -a sterilized agar plate (with lid) -markers -soap and water -clear tape - barren cotton pats science lab Safety In this lab we deprivati 1d to wash our manpower endlessly before and after the lab. We were dealing with bacteria that has the tycoon to be harmful and to avoid unsoundness/sickness we need to good wash our hands and be careful close to the bacteria. another(prenominal) precaution to take was to not cough into or identify whatever bacteria from our bodies into the agar plate. Those bacteria could be exceedingly dangerous and shouldnt be cultivated. Observations Located on lowest page(s) Application Questions 1.

The purpose of heat the agar plates in the steriliser prior to inoculating them with microorganisms was to shew sure that the lab results were exact. The plates capability fetch not been right on cleaned beforehand or the bacteria in the air/where they were stored aptitude still nonplus on the plate. Due to those bacteria the lab results might give up rancid out differently because we elegant different bacteria from places we did non swab. To prevent this we must sterile the plates. Bacteria dies at naughty temperatures so the plates were heated to polish off any remain bacteria that may permit been present on the agar plate. 2.A sterile cotton swab was use as unlike to a unshakable one because befoulment might have occurred and twisted the lab results. If a regular cotton swab was used from a big(p) box, or a previously...If you exigency to get a expert essay, separate it on our website: Orderessay

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