Description | Helicobacter pylori is a motile‚ curved‚ spiral‚ or straight‚ slightly plump‚ gram-negative rod. It is believed to be a major cause of gastritis and peptic ulcers although it resides solely on the gastric mucosa and does not enter cells. Microscopic description for the family Campylocbacteraceae | Shape: Spiral ShapedStaining Reaction (Gram): NegativeUnique Characteristic: Spiral Shaped with Flagellum Single/Clusters: ClusterSpore Formation: NoDimension: 2-4 um x 0.5-1.0 um
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Photosynthesis notes -sunlight brings energy to Earth -the energy in sunlight is packaged in photons -the photosystems in the thylakoid membrane capture photons -pigments in the photosystems have an antenna complex that actually grabs the photons -chlorophyll b captures the photons and transfers the energy to chlorophyll a (the reaction center) -when the reaction center receives the energy it donates an electron -the donated electron will move down the electron transport system (ETS) -ETS
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Finance Case Studies Patrick Moriarty and Damon Honnery’s article “What energy levels can the Earth sustain?” address future global energy production and suggests that high energy growth rates in the 20th century will not continue into the future. In the last 20 years the clean energy industry has endured staggering growth. Public subsidies that have propelled the space to 25 percent annual growth rates in recent years have now become politically unsustainable. Last year‚ the number of
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most important organic molecule is Carbon. Carbon can form with up to 4 different atoms to form chains‚ rings and branches. Organic molecules also contain monomers. Monomers are the “building blocks” of macromolecules. Macromolecules are made up by chains of monomers‚ these are called polymers. Continuing with the four organic molecules are proteins. Proteins provide structure and function and have the chemical structures of Carbon‚ Hydrogen‚ Oxygen and Nitrogen. Proteins have various functions such
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Cell injury In this topic we are going to cover Cell injury Causes of cell injury Mechanism of cell injury Morphologic alterations in cell injury Morphologic types of necrosis Objectives Describe cell injury List the causes of cell injury Discuss how depletion of ATP causes cell injury Describe how mitochondrial damage cause cell injury Explain the mechanism of cell injury by free radicals Discuss how calcium ion influx cause cell injury Cell injury cell injury results when cells
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main forms of cells exist: eukaryotic cells and prokaryotic cells. Prokaryotic cells are smaller and do not have membrane-bound nucleus or membrane- bound organelles‚ but do have: plasma membrane‚ cytosol and cytoplasm‚ and ribosomes. Prokaryotes contain much less DNA than eukaryotes and have circular chromosomes. Eukaryotic cells have information processing organelles‚ such as the nucleus which houses most of the cell’s DNA‚ and ribosomes which use information from DNA to produce proteins. In prokaryotes
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When a cell phone goes off in a classroom or at a concert‚ people are irritated‚ but at least lives are not endangered. When on the road‚ however‚ irresponsible cell phone users are more than irritating: They are putting our lives at risk. Many of us have witnessed drivers so distracted by dialing and chatting that they resemble drunk drivers‚ weaving between lanes‚ for example‚ or nearly running down pedestrians in crosswalks. A number of bills to regulate use of cell phones on the road have been
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"Studies show that driving while talking on a cell phone is extremely dangerous and puts drivers at a four times greater risk of a crash‚" said Janet Froetscher‚ president and CEO of the NSC. "Driving drunk is also dangerous and against the law. When our friends have been drinking‚ we take the car keys away. It’s time to take the cell phone away." A study from the Harvard Center of Risk Analysis estimates that cell phone use while driving contributes to 6 percent of crashes‚ which equates to 636
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Do you really know what is in the foods you eat? Most likely not. You probably have never heard of the words genetically modified organisms. It is time to open your eyes to this silent problem that is occurring right now. Genetically modified organisms are in the foods we eat and are ultimately making people sick. Research has shown that consuming genetically modified foods increases your risk for getting cancers and tumors. The only way to avoid it is to eat organic which is not always affordable
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Analysis of Oxygen Bearing Organic Compounds James Matthew Jocson*‚ Gianvittorio Lanta‚ Chiqui Ann Llamado‚ Jeron Manaig College of Science Department of Biology University of Santo Tomas‚ Manila‚ Philippines Abstract Five oxygen-bearing organic compounds were given namely Methanol‚ 2-propanol‚ tert - butanol‚ formalin‚ and acetone. Different tests were done to each sample to differentiate their characteristics. These test were Dichromate test‚ Tollens Test‚ DNPH test‚ Iodoform Test‚ and Lucas
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