Many types of projects are possible when you are able to count bacteria. For example‚ you could count the bacteria in drinking water‚ fresh milk‚ old milk that is slightly sour‚ buttermilk‚ yogurt‚ mud puddle‚ lemonade‚ and many other things. Or you may want to know how fast Chlorox kills bacteria. If you add some Chlorox to a culture and count the surviving bacteria at suitable intervals you can plot killing the killing curve and determine whether the killing is single hit or higher order. It will
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Antibiotics attack bacteria by targeting a protein‚ or stopping the creation of a cell wall and or how they metabolize sugar. This method of targeting the specific functions of bacteria have allowed antibiotics like Penicillin to save millions of live throughout in the past few decades. As amazing as antibiotics are they have a really smart enemy. Bacteria are cleaver little single-celled organisms. Bacteria can actually barf up the antibiotics we use to fight them. The genetic information bacteria gather in
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Anaerobic respiration in Bacteria Like humans and other animals‚ bacteria need to breathe. Anaerobic bacteria basically mean bacteria that respire anaerobically. All living cells need to respire in order to release energy for vital cell activities. Anaerobic respiration is respiration in the absence of oxygen‚ hence anaerobic bacteria does not breathe at all. The purpose of respiration is to provide the cell with the appropriate molecules for creating energy in the form of adenosine triphosphate
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Flesh-eating bacteria strikes in Florida On June 16th‚ 26 year-old Cason Yeager went for a swim in Florida in Hernando County and later died from contracting the flesh-eating bacteria‚ Vibrio Vulnificus. This bacteria can be found worldwide‚ most particularly in the warm coastal regions but there have been reports in other parts of the world in non-warm waters. According to the CDC in 2013‚ the case count of the vibrio vulnificus was 104 in thirteen states with six hospitalizations. No deaths‚ but
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Sarah Burns Evolution of Plague Bacteria The Bubonic Plague otherwise known as the Black Death‚ has gotten most of its attention from medieval paintings‚ poetry‚ and journals of revulsion. The real horror‚ was the disturbing biological evidence of the bacteria that caused all the pandemics‚ known as Yersinia pestis. The pathogen got its name from the two investigators Yersin and Kitasato. In 1894‚ Yersin was known as the main investigator (ergo. Named after him)‚ he claimed that the mice/rats were
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difference between bacteria‚ viruses‚ fungi and parasites are: Bacteria are single celled organisms that can rapidly multiple themselves every 10 minutes up to 10 times each bacterial cell‚ but they do not live or reproduce in a human cell. When threatened they will make a copy of their DNA to enable them to come back to life in the right conditions. They are able to survive in most extreme living conditions including with and without oxygen‚ there are various types of bacteria such as Cocci/Coccus
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Kenny Vo Microbiology Dr. Arora 10 December 2012 Flesh Eating Bacteria Necrotizing Fasciitis is a rare bacterial disease that causes the rapid decay of the fascia. The human body is said to be compose of approximately a hundred trillion cells‚ connective tissue contributes to about forty five percent of the total cell weight. It was nicknamed the flesh eating bacteria because the victims injuries would have a rotting appearance. What are the pathogens that cause this disease? Necrotizing
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species of bacteria look similar under the microscope and also have the same staining results (ex. Gram stain). To be able to differentiate between the different species‚ one can look at the metabolic differences (fermentation)‚ as well as the environmental condition differences (temperature‚ pH‚ oxygen requirements). Being able to manipulate these conditions in a controlled environment can help to correctly identify the exact bacteria. Different media can be used to culture and identify bacteria. Some
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1: The Microbial World and You Learning Objectives Go Over First Lecture 1-1 List several ways in which microbes affect our lives. 1-2 Recognize the system of scientific nomenclature that uses two names: a genus and a specific epithet. 1-3 Differentiate the major characteristics of each group of microorganisms. 1-4 List the three domains. 1-5 Explain the importance of observations made by Hooke and van Leeuwenhoek. 1-6 Compare spontaneous generation and biogenesis. 1-7 Identify
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Microbiology‚ 2002. vol.3. Temperature and bacteria The lowest temperature at which a particular species will grow is the minimum growth temperature‚ while the maximum growth temperature is the highest temperature at which they will grow. The temperature at which their growth is optimal is called the optimum growth temperature. In general‚ the maximum and minimum growth temperatures of any particular type of bacteria are about 30°F (-1°C) apart. Most bacteria thrive at temperatures at or around that
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