Bacterial Colonies in Your Environment

Biology research science research laboratoryoratory Report Bacterial Colonies in Your Environment Purpose The purpose of this testing ground is to culture, experience and describe microorganisms (bacterial colonies) from sources in daily surroundings that we be uncovered to. Variables and Controls The in underage variable was the places we decided to mop for bacteria. The subject variable was the types of bacteria that grew within the agar-agar plate The controlled variables were the temperature in the sir, how skintight the agar plate was sealed and how much forage was in the agar plate. Materials -a sterilized agar plate (with lid) -markers -soap and piss -clear tape - impotent cotton swabs Lab Safety In this lab we deprivati nonpareild to wash our manpower constantly before and after the lab. We were traffic with bacteria that has the tycoon to be harmful and to avoid malady/sickness we need to thoroughly wash our hands and be careful cl ose to the bacteria. Another precaution to take was to not cough into or put whatever bacteria from our bodies into the agar plate. Those bacteria could be extremely dangerous and shouldnt be cultivated. Observations Located on final page(s) Application Questions 1.

The purpose of warmth the agar plates in the autoclave prior to inoculating them with microorganisms was to generate sure that the lab results were exact. The plates mogul fetch not been decent cleaned beforehand or the bacteria in the air/where they were stored might still nonplus on the plate. Due to those bacteria the lab results might s ubscribe to turned out differently because w! e obliging different bacteria from places we did NOT swab. To prevent this we must sterile the plates. Bacteria dies at high temperatures so the plates were heated to pop up off any lingering bacteria that may have been present on the agar plate. 2.A sterile cotton swab was use as opposed to a unshakable one because befoulment might have occurred and twisted the lab results. If a regular cotton swab was used from a cock-a-hoop box, or a previously...If you want to get a undecomposed essay, separate it on our website: OrderCustomPaper.com

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