Name: Cheyenne McMillian Causative Agent: Chlamydia trachomatis Disease: STD chlamydia, ocular trachoma Classification of the causative agent: C. trachomatis is a gram – coccoid bacteria History: 15-19 year old women account for half of the carriers of the disease for females. Virulence factors of the causative agent: C. trachomatis has a unique cell wall structure that allows it to hinder phagolysosome fusion within phagocytes. Characterized as gram negative, a notable difference amongst
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transgenic organisms transgenic organisms (Genetically Modified Organisms) An organism whose genetic characteristics have been altered by the insertion of a modified gene or a gene from another organism using the techniques of genetic engineering. Explain how transgenic organisms work. What is the process? A flowchart is helpful: The genes of one species are modified, or transplanted into another organism. Transgenic Organisms are possible due to recombinant DNA technology (the procedure used
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of a unicellular organism would be; Bacteria, Archaea, Protozoa. An example of a multicellular organism is; most types of Fungi, Algae. There are also organisms that are partly unicellular and multicellular like: Slime Molds and also a genus called Dictyostelium . The class will be investigating/observing an onion skin through a microscope and will be drawing a detailed picture of the onion, they will have to observe the onion to find different types of bacteria and organisms on the skin. Cells
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The 1920s gave us many great things that we still use to this day. One of the most important things that was discover in the 1920s was penicillin. What is penicillin you say; penicillin is an anti-biotic used to combat infections. Penicillin was discovered in 1928 by a Scottish biologist named Alexander Fleming. The way he discovered it was quite strange; after going on holiday he returned to his lab to find a dish with mold on it but around the outside of the dish the mold seemed to have died. He
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E.coli is a bacteria that is often associated with cows. Recent studies have shown that outbreaks of E.coli are the result of diets in cows containing corn and starches. (www.ansc.purdue.edu). In the past couple of years cattle diets have been changed to be more cost effective and now contain mostly corn and corn-byproducts. This change in diet has led to many severe effects in the health of the animals including in increase of E.coli. This E.coli strain is the third most deadly bacterial toxin,
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Prokaryotes and Eukaryotes are somewhat similar in the chemical aspect. They both contain nucleic acids, proteins, lipids, and carbohydrates. They both use the same kind of chemical reactions to metabolize food, build proteins, and store energy. It’s the absence of organelles and the structure of cell walls and membranes that differentiate a prokaryote and a eukaryote. Prokaryote comes from the Greek word meaning pre nucleus. The DNA is not enclosed within a membrane has a singular circularly arranged
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Compare the structure of prokaryotic and eukaryotic. (290) There are two major types of cell: eukaryotic and prokaryotic. Eukaryotic cells have many membrane-bounded organelles within the cell. Whereas prokaryotic cells do not have any membrane-bounded organelles. The only membrane in prokaryotic is plasma(cell)membrane. Prokaryotes with the size of 5㎛(1-10㎛) are much smaller than eukaryotic cells with the size of 10㎛(10-100㎛). They both have a cell wall but with different composition. Prokaryotic
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Background: Pneumonia is a disease, in which the lungs become inflamed and congested, reducing oxygen exchange and leading to uncomfortable cough and shortness of breathing. It affects individuals of all ages but occurs most frequently in children and the elderly. Pneumonia in children is the most common cause of death around the world. Historically, in developed countries, deaths from pneumonia have been reduced by improvements in living conditions, air quality, and nutrition. In the developing
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Methicillin-resistant Staphylococcus aureus (MRSA) is known as one of the most common superbugs. The prevention and control of MRSA is the most written about pathogen.1 It is becoming more and more difficult to treat since this bacteria is constantly developing a resistance to several antibiotics. Methicillin was used as an antibiotic to treat Staphylococcus aureus. In England in 1961, the first strain of MRSA was found.2 MRSA is a bacterium that is gram-positive, meaning that it will take a stain
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Dr. Roy Plunkett created Polytetrafluoroethylene also known as Teflon in 1938 after receiving his PhD in organic chemistry and took job with DuPont in Jackson, New Jersey. Dr. Roy was appointed to work on finding a non-toxic substitute refrigerant other than ammonia and sulfur dioxide. [1] Teflon was accidently invented when Dr. Roy and his assistant, Jack Rebok, were experimenting with one of the potential refrigerants; tetrafluoroethylene (TFE) and he consequently produced around 100 lbs of gas
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