Bacteria

work surface with disinfected wipes to prevent cross contamination each time. Utilizing the gloves and personal protective equipment assisted in maintaining a pure culture during the series of experiments. The first step, was to grow the yeast and bacteria cultures. The materials used for the Aseptic Technique Experiment(1) were: test tube rack, 5 mL nutrient broth tubes, pipettes, a lit tea light, Fleischmen’s rapid yeast pack, E. Coli tablet and the S. epidermidis tablet. Started by activating

Unknown Bacteria I. Introduction The unknown bacteria plate chosen was plate #2. It was identified to be Micrococcus luteus. It is a gram positive, Coccus bacteria that is commonly found in dust, water, soil, and the air. M. luteus also thrives in the human mouth and upper respiratory tract. Sir Alexander Fleming discovered it in 1928 before he identified penicillin. It is part of the normal flora on human skin as well as other mammals. Since it is part of normal flora it is normally not pathogenic

with placement of the Plasmid containing Bacteria (experiment’s culture) and control bacteria. The experiment’s culture was place in the jar with no ampicillin. As a result, bacteria with plasmid grew as well as bacteria without plasmid. However, it is possible to identify the transformed culture because of the blue marker. On the other hand, the control cells do not have the plasmids with ampicillin resistance and blue marker so the population of bacteria cells are fewer in the jars with jars with

History There is so much bacteria and so many bacterial cells everywhere. Bacteria is a helpful or a harmful type of cell. Bacteria is a unicellular organism which means it only has one cell. Bacteria can live in many areas and climates it can live in cold climates and hot climates. Also, bacteria makes up millions of items such as, food and vitamins. The amount of bacteria in the mouth will determine if a dog or a human’s mouth is cleaner. While bacteria is everywhere, it has also been around

Although many may not realize it we have bacteria everywhere. Many when they hear the word bacteria they automatically think it is a bad thing, although yes it is the reason for many disease us humans carry not all of the bacteria is bad. For example we need bacteria when we digest our food making cheese, butter, decomposing waste in sewage plants, and helping make antibiotics. Bacteria is also responsible for some elements elements like carbon, nitrogen, and oxygen to be returned to the atmosphere

Sam Afflu Section H1 Microbiology 680 390 Lab Report 2: The Isolation and Identification of an Unknown Bacteria Abstract This laboratory experiment’s objective was to take a pure culture and isolate it from a mixed culture. The other part of the objective was to ascertain what species of bacteria that the pure culture was. The hypothesis made stated that so long as lab protocol was followed, the unidentified culture would be positively recognized/identified. An isolated pure colony of the

Locations where Bacteria can be Found: Similar to other germs like cold viruses, bacteria can live in various unexpected locations or spots. This is primarily because bacteria are actually found anywhere since they are in water, plants and animals, air, and the soil. The presence of bacteria in unexpected spots and locations originate from their ability to thrive in the most uninviting and forbidding places on the planet. Actually, some medical professionals state that germs like bacteria that attack

What are bacteria? Bacteria are very different from viruses. First of all, bacteria are much larger in size. The largest virus is only as big as the very smallest bacterium (singular for bacteria). But bacteria are still microscopic and cannot be seen with the naked eye. They are so small that the sizes of bacteria are measured in micrometers (10,000 micrometers = 1 centimeter). By comparison, the head of a pin is about 1000 micrometers wide. Though more complex than a virus, the structure of a

resistant to antibiotics due to people that are sick and receive an antibiotic from their doctor; but as soon as they start to feel better they stop taking the antibiotic. If you stop taking antibiotics before the treatment is over can cause the bacteria to return stronger and this time resistant to that antibiotic. Another reason that certain bacteria’s are becoming resistant to antibiotics is due to patients expecting doctors to prescribe antibiotics to them even though they have a viral infection

Bacterial Growth Lab Priyanka Savaliya Mrs. Bronson September 18th/2013  Bacterial Growth Lab Introduction: In this bacteria growth lab, students from Mrs. Bronson’s biology class collected bacteria samples from around the school and grew them in petri dishes filled with agar which were prepared one day before in advance with the expectation that after one week, distinct bacterial colonies will grow larger in numbers so that the human can see them. These single-celled prokaryotes were grown on agar