on Staphylococcus Epidermis and Escherichia coli Abstract Antimicrobial effects of cilantro against the gram positive bacteria S. epidermis and the gram negative bacteria E. coli were looked at. We predicted that cilantro would act as an antibiotic against S. epidermis but not to E. coli because S. epidermis does not contain an outer membrane whereas E coli. does. We predicted that the semi-permeable outer membrane of E. coli would protect the bacteria from any antimicrobial properties of cilantro
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Effect of Osmosis on Potato Aim: To investigate the effect osmosis has on potato pieces that are placed in different concentrations of sugar solutions in water. Hypothesis: I believe that the more saturated the solution is the lighter the potato will be‚ and the potato in the clear water will weigh more after being left in the solution over a 24 hour period. This is because the cell membranes in the potato act as semi permeable membranes (meaning that they only allow certain molecules through)
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Long and Short Term Effects of Refined Sugar Refined sugar is made from sucrose extracted from raw sugar cane or sugar beets. Often added to processed foods and beverages‚ refined sugar has several forms such as granulated white sugar‚ brown sugar‚ fructose‚ sucrose‚ dextrose‚ high fructose corn syrup and malt syrup. The average American consumes about 22 tsp. of refined sugars each day according to the American Heart Association (Marina). Refined sugars have led to an obesity epidemic in America
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Effects of Selected Drugs During anesthesia‚ there is a great amount of drugs used to suppress the pain that would occur to the body. There are some common drugs that are used. Alcohol‚ Aspirin‚ Lidocaine‚ Morphine‚ and Succinylcholine are all used during anesthesia. Each is used to interrupt the pain signals during surgeries. Without these medications‚ the body would not be able to withstand such trauma occurring to perform the procedure fully. For many years‚ men and women have used the
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6 THE EFFECTS OF URBANISATION ON LIVING CONDITIONS Urbanisation causes changes in the living conditions under which people live and work. Especially in developing countries‚ this often leads to adverse living conditions (see introductory remarks in Section 1.2.5). In the particular setting of urbanising villages‚ there are places where chaotic urbanisation and industrialisation causes hardship‚ particularly for local residents. This is not the whole story‚ however. There are also many positive
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The Stroop Effect Experiment In 1935‚ John Ridley Stroop conducted the original experiments of the stroop effect. The stroop effect is an effect that occurs when individuals attempt to name the color of words that spell out a conflicting color. Stroop reported an interference effect when individuals were asked to report the color of words presented to them. Stroop collected his data by showing his participants a sheet of paper with printed words on it. He then asked his participant’s to name the
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There are many ways in which substances can move across the cell membrane and in which then helps in the function of the body (cells‚ tissues and organs) overall. There are 3 processes that a substance can move across the membrane‚ theses are diffusion (simple and facilitated)‚ osmosis and active transport. Both diffusion and osmosis are passive processes‚ which mean they do not need energy to occur‚ whereas active transport does require energy. All three processes are involved in many functions
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diffusion of water molecules across a selectively permeable membrane involves a special form of diffusion called osmosis. When the external and internal solute concentration are equal‚ there is no movement of water will be observed. This is described as isotonic. Osmosis does not occur in an isotonic solution‚ because the concentrations are equal on both sides of the membrane and there is no net movement of molecules from one side of the membrane to the other (Payne‚ 2007). A hypotonic solution is a
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Health effects of tobacco From Wikipedia‚ the free encyclopedia Part of a series on Tobacco HISTORY History of tobacco BIOLOGY Nicotiana (Nicotiana tabacum) Nicotine Tobacco diseases Types of tobacco SOCIAL IMPACT Health effects Prevalence of consumption Tobacco advertising Tobacco and art Tobacco and other drugs Tobacco control Tobacco politics Tobacco smoking Tobacconist PRODUCTION Cultivation of tobacco Curing of tobacco Tobacco industry Tobacco products v t
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Trade-Offs and the Bullwhip Effect A trade-off refers to any situation that entails losing an aspect or quality of an item in return for achieving another aspect. In the corporate context‚ the term is majorly used in cases where there is the need to get rid of some things in return for other better things (Khayum‚ 2003). There are a number of trade-offs that impact the operations of business organizations. Inventory Transportation Costs Inventory transportation costs refer to the costs of delivering
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