Unknown Lab Report Microbiology Unknown A Sonia Kabra November 26‚ 2014 Introduction There are numerous reasons for identifying unknown bacteria. Some of these organisms have distinct qualities that set them apart from one another‚ such as the exposure to certain environments. Through out the semester in the laboratory‚ we are able to encounter some of the few microorganisms that we as humans have come into contact with. With the knowledge gained from the sessions in the laboratory‚ we can now
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biofilms When bacteria is threatened by antibiotics treatment that can kill them‚ or when a strong immune system responses to bacteria and produce cytokines or other agents to eliminate it from the body‚ Bacteria has the choice of either staying as individual and die or change their form to make biofilms. Biofilms are communities or bacteria binds together in large groups and make a sticky mesh to make themselves resistant against antibiotics. Some drug that can kill single bacteria will not be able
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gram-positive bacteria. Penicillin V consists of 16 carbons‚ 18 hydrogens‚ two nitrogen‚ five oxygens and a sulfur atom. The beta-lactam group is the ring composed of two nitrogen‚ a sulfur atom‚ and an oxygen double-bound to a carbon. Penicillin works by bursting a bacteria’s cell wall; this is done by inhibiting the proteins that link peptidoglycans together in the cell wall‚ which prevents the bacteria from closing the “holes” in the wall and the difference in pressure results in the bacteria bursting
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article‚ bacteria and super bugs will also be discussed. Bacteria-Super bugs Bacteria are tiny living microorganisms - they are neither plants nor animals but belong to a group all by themselves called prokaryotes‚ which simply means they do not possess a nuclear membrane‚ nor do they have membrane-bound organelles (BioZone 2011).Bacteria are tiny single-cell microorganisms‚ usually a few micrometres in length that normally exist together in millions. It has been shown‚ that bacteria were among
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With the number of bacteria in our universe exceedingly numerous compared to the human population‚ it could seem quite difficult or maybe even impossible for scientists to analyze each and every single one of these microbes. So that is why we would be using a simple approach to looking at diversity in bacterial communities. In this experiment we went out to collect samples from the American River in order to analyze the various diversity in Bacteria species in the community. We focus our experiment
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Superbugs are becoming a big problem in the world‚ but what are superbugs? Superbugs is a bacteria that becomes resistant to antibiotic drugs they carry genes that are resistant to antibiotic drugs and cannot stop the bacteria from multiplying (Staff 1). You might know of superbugs by the term multidrug-resistant bacteria. This mostly happens when people overuse antibiotics and their body becomes immune to those drugs. In very severe cases people with extremely weak immune systems usually die if
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of two different topical chemicals on growing bacteria over the course of a week. Bleach‚ water‚ hand sanitizer and hand soap were all variables used to observe the effects of the bacteria swabbed from my palm and fingers. Bleach has been the go to product for killing germs and it is because of the similar effects it has with high temperature on the proteins in bacteria. I hypothesized that bleach would be the most efficient way for killing the bacteria over hand sanitizer and hand soap. Methods I
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The Relation of Antiseptics and Bacteria Growth Purpose: To explore the effectiveness of different levels of concentration of antiseptic and antibacterial products’ prevention of bacterial growth. Question: Amongst common household products‚ which antiseptic and level of concentration is more effective at inhibiting the growth of bacteria? Introduction: Antiseptics are antimicrobial substances used on living tissue to reduce the possibility of infection‚ putrefaction or sepsis. The word “anti”
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Food poisoning occurs when a bacterium that is in food is prompted to grow and reproduce. Bacteria thrive in warm temperatures and an environment full of moisture. When the conditions are right‚ bacteria can grow from one to several million in just eight hours. The problem arises when instead of producing millions of bacteria‚ there is less but more toxic bacteria or there are a huge amount of bacteria that cause the problems inside the body. For example‚ Jill comes home after school and she
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The world is exist with germs of all kinds especially viruses and bacteria. Most of the time human bodies do a wonderful job of fending off these microbes. This sort of self-defense is due to the immune system‚ which detects any pathogen also known as disease-causing agent and attacks it with immune foot soldiers including macrophages‚ lymphocytes and phagocytes. Specifically‚ over 700 different strains of bacteria have been discovered in the human mouth‚ though most people are only host to 34 to
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