There are three common shapes of bacteria: spiral, rod-shaped, and spherical. The spherical shaped bacteria are usually formed in long chains. Rod-shaped bacteria looks like abstract art and spiral bacteria looks like DNA strands (Johnson 339). Even though they may look interesting, they can have an awful effect. One type of spiral shaped bacteria sometimes causes kidney and liver damage. This spiral-shaped bacterium is called Leptospira. Staphylococcus aureus is a spherical bacteria that can cause skin infections (Johnson 339).

Although there are three major shapes of bacteria, there is a certain general structure to all bacterial cells. There is no nucleus in a bacterium. All of the genes of the bacterium are located on one molecule of DNA in the middle of the bacterium. Some bacter

Bacteria can grow in the human bodies, which can have the bad side effect of causing illness. Bacteria that make humans sick can come through food or water. Harmful bacteria in food cause botulism, which can cause paralysis or even death if even one-millionth of the bacterium is consumed. This harmful bacteria can grow in improperly canned food and it lives in soil. Salmonella is another harmful bacterium. The symptoms aren't nearly as bad as botulism but it can still be fatal. The best way to avoid getting salmonella is to wash kitchen work areas with hot, soapy water (Johnson 349).

ia attach to other surfaces by pili, the part of the bacteria which sticks out from the outer surface. There are little propellors, that are knobs that swing around, which are on some bacteria that allow them to glide through their environment (Johnson 341).

Pasteurization is the heating up of the substance to kill any unwanted bacteria and its toxins (Todar 1). When the pasteurized substance is cooled down to a few degrees above freezing it eliminates bacteria as well to get rid of the bacteria in the substance.

Yogurt is semisolid cultured milk, made by the heating of milk to a full boil and then the cooling of the milk. One quart of milk would be poured into a pan and brought to a boil, then cooled to 105-110 degrees. Once the milk is to the required temperature, yogurt culture is added stirred and then poured into a quart jar. Cover the quart jar with a towel and place in a warm

Some common words found in the essay are:
DNA DNA, Bacteria Bacteria, Leptospira Staphylococcus, Alexander Flemming, harmful bacteria, bacteria grow, bacteria johnson, bacteria bacteria, johnson 339, yogurt milk fat, quart jar, milk fat, plants animals, shapes bacteria, bacteria feed,
Approximate Word count = 999
Approximate Pages = 4 (250 words per page double spaced)