ABSTRACT: This project will show how strong certain bacteria that are commonly found in biofilms attract to Pseudomonas aeruginosa through a capillary tube. It will test ten bacteria to see which bacteria have more chemoattractants with Pseudomonas aeruginosa . These bacteria are all motile‚ so to come together to form a biofilm‚ they must lose their ways of mobility somehow. Since a biofilm is just one huge community of bacteria‚ it would be good to find out if there are ones that are more
Premium Bacteria Antibiotic resistance Microbiology
Causes and spread of infection. Bacteria. These organisms are made up of just one cell. They have the power to divide so can multiply on their own. Some bacteria are harmless and can be of use in the aid of digestion and are found in the intestines. Other bacteria can be the cause of diseases. These bacteria have to find a way in to the body to be of harm and can make their way through the skin or be digested and attack our immune system. Viruses. These micro-organisms are very tiny. They invade
Premium Bacteria Infection Immune system
REVIEW OF RELATED LITERATURE This investigatory project aims to make use of rambutan peeling extracts that is high in phenolic compounds such as tannin and saponin that exhibits antioxidant activity and antibacterial activity against pathogenic bacteria. Although the seeds contain such compounds the peeling exhibit greater amount of the said compounds. Rambutan is a very popular fruit cultivated in the Philippines and it is eaten in large amounts. The rambutans rind is quickly discarded and thrown
Premium Bacteria Microbiology
result of overuse‚ misuse‚ and abuse‚ antibiotics‚ once hailed as the savior of mankind‚ are an increasing threat as bacteria grow ever stronger. (Bunyard) The development of antibiotic-resistant bacteria poses a looming threat to the medical industry and to society. A quick look into modern newspapers or journals would reveal startling reports about antibiotic-resistant bacteria‚ also known as superbugs‚ and how devastating their emergence could potentially be. (Ed. Bonomo and Ed. Tolmasky) Worldwide
Premium Bacteria Antibiotic resistance Penicillin
to day is the term used to refer to antibacterial which are only indicated for the treatment of bacterial infections‚ there is more than 15 classes of drugs that differ in chemical structure and activity against bacteria. A certain antibiotics may be effective against one or various bacteria. These drugs should not be used and are not effective against viruses‚ which are the main agents of community infections (colds‚ flu). It is however necessary antibiotics in the case of bacterial infections
Free Bacteria Antibiotic resistance Penicillin
Multiplication of contaminant bacteria in urine and interpretation of delayed culture. Abstract A prospective study of the bacterial populations of non-infected urine was mounted in an attempt to define the length of delay between voiding and analysis during which culture would not give false positive results due to the multiplication of contaminant bacteria present at the time of voiding. The findings suggest that culture of urine within four hours of voiding is likely to give a true indication
Premium Urinary tract infection Escherichia coli Kidney
The Effect of Common Bactericidal Agents on Staphylococcus Epidermidis Introduction Staphylococcus epidermidis is a facultative anaerobic bacterium. It is part of the normal human flora and is found on the skin. Colonies of these bacteria can produce a protective slime called a hydrophobic biofilm. Staphylococcus epidermidis is usually not pathogenic unless it enters the human body. One of the most common places for infections are hospitals where people often have weakened immune systems‚ open
Premium Bacteria Chlorine Oxygen
growth of bacteria and fungi. Aim: our aim was to see weather or not garlic‚ mint and grass contained antimicrobial properties and if they did how effective they were we were trying to see weather the bacteria will grow around the different plants. Control Test: As a control test what we did was‚ we dipped a paper disc into the alcohol solution we used to dissolve the plants; the reason we did this was to test to see weather or not the alcohol would affect the end result. If bacteria grew around
Premium Bacteria Microbiology Microorganism
treated‚ to knowing the correct microorganism to be used for making certain foods or antibiotics. This study was done by applying all of the methods that have been learned so far in the microbiology laboratory class for the identification of unknown bacteria. The identification process can be completed with a series of deferential stains and biochemical tests. Creating a dichotomous key helps to limit the amount of biochemical tests done on an unknown organism and by observation and recording of data
Premium
1943 Fluctuation Test. Historical background is first addressed to contextualize the experiment and define the theories‚ ideas‚ and discussions relevant at the time of the experiment. A brief summary of biologists’ knowledge and attitudes towards bacteria is explained through contemporary quotes. The two main competitive theories of evolution‚ (mutation/natural selection and acquired inheritance) are described and evaluated.. Luria and Delbrücks two hypotheses (induction and mutation) are identified
Premium Bacteria DNA Gene