Microbiology

Background Acinetobacter baumannii is a pleomorphic aerobic gram-negative bacillus (similar in appearance to Haemophilus influenzae on Gram stain) commonly isolated from the hospital environment and hospitalized patients. A baumannii is a water organism and preferentially colonizes aquatic environments. This organism

Weren’t anti-microbial agents considered safe for humans to use and not suppose to be harmful in nature? In recent studies, triclosan, an antibacterial compound is shown to be a harmful agent to humans rather than being helpful in keeping bacterial

In Gram staining, a purple crystal violet stain is used to stain the cells for 30 seconds then it is washed with water and Gram’s iodine is applied for 30 seconds and wash of with water. A complex between crystal

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Why is it an important feature of antimicrobial agents? Selective toxicity is the ability of a chemical or drug to kill a microorganism without harming its host. Selective toxicity is important to microbial agents because it enables these agents to

Unknown #1 was found in a nearby pond that was created by an earthquake. Some of the various methods introduced and practiced in class were applied in identifying the microbe. Procedures were followed as stated in the index of the

Microbes produce various antibiotics and by isolating different microbes the antibodies can be tested for. Soil samples are highly rich in microorganisms. The antimicrobial activities of microbes from 3 different soil sources (Tenby, Summerstrand, North Campus main building round-about and South

It is rod-shaped, with the ability to form a tough, protective, shield around itself. It can tolerate extreme environmental conditions, and is an obligate aerob. The antibiotic that B. subtilis is resistant to is Tetracycline. When a bacteria is resistant

Food Production 1. Lactobacillus, Streptococcus, 2. Saccharomyces cerevisiae B. Oxygen production C. Nitrogen Fixation D. Decomposition E. Bioremediation F. Antibiotics G. Biotechnology and research H. Normal flora I. Pathogens (malaria parasite, E. coli, Salmonella, Clostridium) IV. The Origin of Microorganisms

Dr. Robert Suran May 1 2013 Microbiology Abstract Over a three week time span I was able to successfully identify an unknown microorganism by combining the results of several tests. The first test was the Gram stain test which showed

The higher the concentration of antiseptic, the more powerful it will be at inhibiting/ killing microorganisms which cause bacterial growth. ” This theory supports my result because as you can see the zone of inhibition increases due to the increasing

The purpose of this experiment was to learn how to properly perform a gram stain and to also understand how gram staining can help identify either gram-positive or gram-negative organisms in the laboratory. The materials needed for this experiment included:

The higher the concentration of antiseptic, the more powerful it will be at inhibiting/ killing microorganisms which cause bacterial growth. ” This theory supports my result because as you can see the zone of inhibition increases due to the increasing

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