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 invariably since a health seminar my father once took me to. I hoped to bring home the bacon the situation that people in their domicile that bacteria does cost and empennage be dangerous, and we should be extremely c arful of our salubrious 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 due 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 oil color jelly, have a cup of agar which should be in a jar with a non metal lid, 460 watts cook and a timer. 1. first base take the jar with agar and heat it for 2 legal proceeding in the microwave. 2. e venly pour in the 8 Petri dishes. 3. arrive the lids off of the PDs (Petri Dishes) and let the agar cool in them into a jello same substance. 4. Put PDs lids on. 5. Apply very thin layer of petroleum jelly on doorknob. 6. Use one cotton swob to dab in the doorknob a few time. 7. piano lift two lids and lightly touch cotton swab various places.

8. Close the lids and label them DK 1 and DK 2. 9. Repeat steps 5 through 8 for kitchen yield and carpet. 10. Label the put out two PDs tell 1 and Control 2. 11. Record observations 4-5 times 3 days after the experiment. The variables: Independent = The theatre surfaces low-level = Number of bacteria colonies. Control = Untouche d agar dish. The household surfaces are:... ! If you want to get a full essay, assure it on our website: OrderEssay.net

If you want to get a full information about our service, visit our page: write my essay