Bad Bacteria Research Paper

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Bacteria comes in three main shapes: spherical, rod shaped, and spiral. Some bacteria is good, and others are harmful and bad. In our restaurant senario, the bacteria is not good, it is all bad. We want to find wether sit down restaurants or fast food restaurants have more bad bacteria. Bacteria constitute a large domain of prokaryotic microorganisms. Typically a few micrometres in length, bacteria have a number of shapes, ranging from spheres to rods and spirals. The worst bacteria either directly destroys tissue by feeding upon it or produce a toxin that destroys tissue. Other bacteria reacts negatively to food, or are poor fermenters of food. And some species of yeast and bacteria are bad because they take up space, crowding out the …show more content…
Some infections bacteria cause include sore throats, ear infections, cavities, and pneumonia. To find the amount of bateria on tabletops in fast food restaurant and sit-down restaurants, we will need some supplies. The materials we need are a petri dish, a pencil, an incubator, a hot water bath, nutrient agar, and a thermometer. We need to take bacterial swabs from different restaurants and different types of restaurants. Then we will inoculate a petri dish with bacterial culture. Bacterial culture is a method of multiplying microbial organisms by letting them reproduce in predetermined culture media under controlled laboratory conditions. Bacterial colonies come in many different forms and shapes, but they are clearly visible and easy to see and count. We need to determine what kind of environment conditions influence bacterial growth. We will set up a hot water bath at 95C, loosen the caps, and place nutrient agar bottle until it liquifies. Nutrient agar is a general purpose medium supporting growth of a wide range of non-fastidious organisms. While waiting for the agar to cool, we are going to lift part of the cover of the …show more content…
2 Oct.2014.
"Changing tables, beds of bacteria?" 7news.n.p,n.d. Web. 02 Oct.2014.
"Bacteria Facts:19 facts you didnt know about bacteria. N.p,n.d. Web. 02 Oct. 2014
"Sciencestuff.com/playground/agar_powder/sntml
"What Are Germs?" KidsHealth - the Web's Most Visited Site about Children's Health. Ed. Steven Dowshen. The Nemours Foundation, 01 Jan. 2014. Web. 05 Oct.
The anaerobic bacteria and their activities in nature and disease; Elizabeth McCoy and L.S. McClung.

Logbook:
Agar is pronounced awger (sounds like fogger without the f). Agar is a gelling agent extracted from red seaweed. Nutrient agar is a commonly used food medium for microbial cultures.
Nutrient agar
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