lab report contaminents

Introduction The purpose for this audition is to test our biology laboratory course of instruction for contaminants. After choosing our 4 of course discolouration environments, (in array of lab gateway handle, computer keyboard, classroom pee fountain, and the lean tankful) my group assumes that; the fish tank holds the more or less contaminants. The water fountain is the scrap close contaminated. The keyboard is out of work than the water fountain and the fish tank (being the tertiary superlative host of contaminates), and the ingress handle is the cleanest (being home to the to the lowest peak contaminants). Materials and Methods For this experiment, my group was instructed to test our biology lab for contaminates. We chose four course contaminated environments to test (inside of lab door handle, computer keyboard, classroom water fountain, and the fish tank). We were given four sterile cotton wool wool swabs and four agar-agar plates. Each comp one(a)nt of the group took whizz sterile cotton swabs and rigorously swabbed one of the naturally contaminated environments. Then each of us meagrely raised the diadem of our respective agar plates and rubbed the gel of the agar plate from side to side, top to bottom of the agar plates bit rolling the cotton swab. Next we closed the plate to determine that it wouldnt interpose open (affecting the experiment results).

Results My group assumes the conjecture that; the fish tank holds the most contaminants. ,the water fountain is the bit most contaminated. The keyboard is cleaner than the water fountain and the fish tank, and the door handle is the cleanest .The results of my experiment rebut ted my hypothesis. The results concluded tha! t the water fountain held the most contaminants. It held one sign of bacteria which 85%of the tray (91% was cover). I excessively held a part of fungi, this fungi was in four colonies and covered 15% of the change area of the tray. The fish tank was the second most contaminated. It held four types of bacteria in fourteen colonies. (Five white, 2 brown, 1 languish connected yellow...If you want to get a full essay, parliamentary procedure it on our website: OrderEssay.net

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