Research Paper on bacterial colonies in households. Includes technical information on different bacterial growth factors and examples.

Which nursing home surface produces the most amount of bacterium colonies? My opening is that the entrance doorknob contains the greatest amount of bacteria/bacteria colonies. I do been fascinated with bacteria and microorganisms ever since a health seminar my father once took me to. I hoped to grasp the situation that people in their domicile that bacteria does pull round and empennage be dangerous, and we should be extremely c beful of our healthy secern because of the daintygs we cutaneous senses. One fact that comes to mind are coins. Coins are cognize as adept of the dirtiest things to exist referable to mix of bacteria from variety of people. My experiment was done with 8 Petri dishes, 3 25x30 newspaper sheets, 10 cotton mop ups, 18 oz of rock oil jelly, have a cup of nutrient agar which should be in a jar with a non metal lid, 460 watts microwave oven and a timer. 1. first base take the jar with agar and heat it for 2 legal proceeding in the microwave. 2. evenly pour in the 8 Petri dishes. 3. arrive the lids off of the PDs (Petri Dishes) and permit the agar cool in them into a jello resembling substance. 4. Put PDs lids on. 5. Apply very thin layer of petroleum jelly on doorknob. 6. Use one cotton wipe up to dab in the doorknob a few time. 7. quietly lift two lids and lightly touch cotton swab various places.

8. Close the lids and label them DK 1 and DK 2. 9. Repeat move 5 through 8 for kitchen yield and carpet. 10. Label the go bad two PDs tell 1 and Control 2. 11. Record observations 4-5 times 3 days after the experiment. The variables: Independent = The kinsperson surfaces leechlike = Number of bacteria co! lonies. Control = Untouched agar dish. The household surfaces are:... If you want to get a full essay, effect it on our website: BestEssayCheap.com

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