“Synthesis of a Genius” by George Kauffman and Steven Chooljian. The area of exploration and discovery that I chose was the synthesis of urea in chemistry. Urea was discovered by Friedrich Wohler‚ in 1828. This discovery ultimately changed the belief at the time that only organic compounds can be created from living organisms. He was able to create urea (which is mostly what is found in human and animal urine) in the lab with inorganic compounds. The interesting thing about this was Wohler’s
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converts excess protein into urea. The kidneys remove unwanted substances such as urea‚ excess water and salt. © Boardworks Ltd 2009 What is urea? Excess amino acids in the body are broken down by the liver‚ producing a waste substance called urea. This process is important because it converts toxic ammonia to urea‚ which is done using carbon dioxide. Once formed‚ urea is transported by the circulatory system to the kidneys. The kidneys filter the blood‚ removing urea and excess water and salt‚
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With the urine samples given to us by the five patients we tested the amounts of glucose‚ amino acids‚ urea‚ and salts in urine. To test this we used different chemicals that would react with one of the four items above showing either a high concentration or low concentration within the urine. By using a solution called silver nitrate we could test whether or not salt was present in the urine. If the urine turned a cloudy white after adding the silver nitrate the urine had a high concentration of
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and solution (bacterial) in optimum ratio and checking its effectiveness from strength and durability perspective. Till now Stage 1 is partially over: We have made use of this bacterial solution(Emulsion: Bacillus culture+ nutrient broth+ sucrose+ urea+ calcium chloride+ antifungal agent(griseofulvin)to heal the existing cracks in the concrete walls. For achieving high 7 days we have made use of bacterial solution in some fixed proportion with water. The 7 days test was performed on 7/12/11 with
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and secretion What are renal pyramids? Triangular shaped units in the medulla that house the loops of Henle and collecting ducts of the nephron. This is also the site for the counter-current system that concentrates salt and conserves water and urea Where is the site of blood filtration? Glomerulus What does a nephron save for the body? water Where is the glomerous located? The glomerulus is surrounded by the Bowman’s Capsule How are kidney stones formed? Crystallization of calcium
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materials‚ the waste products of metabolism and substance in excess of requirements from organisms. Metabolism is chemical reactions taking place inside cells‚ including respiration. The body excretes three main waste materials. These are Carbon Dioxide‚ Urea and Water. Excretion is a very important feature to us because without it toxic substances will build up in our bodies and kill us. It also helps in maintaining the composition of body fluids. The Excretory System of humans is made up of 4 structures:
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Describing the appearance of bacterial colonies has been an important tool for microbiologists. On solid media‚ a colony is theoretically derived from a single cell. If well separated from other colonies‚ a colony will have a characteristic shape (both in elevation and margin)‚ size‚ color‚ and consistency. Usually‚ observation is made with the naked eye‚ but dissecting microscopes are also used. The characteristics defined by a colony’s morphology may be used at a superficial level to distinguish
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172/100‚ heart rate 92 beats per minute‚ and a temperature of 102.2 F. There have been some labs done. His red blood count is 3.1 million cells‚ white blood count is 22‚000 cells‚ potassium is 5.4 mEq/L‚ calcium is 6.8 mg/dL‚ phosphate is 4.3 mEq/L‚ urea is 37 mg/dL‚ creatinine 2.0 mg/dL‚ albumin is 2.9 mg/dL‚ and pH is 7.29. With labs like these‚ more testing was done. A chemistry panel which showed protein 1.7 gm/24 hours‚ glomerular filtration rate of less than 30 ml/minute‚ and his urine sediment
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Mapua Institute of Technology School of Chemical Engineering and Chemistry Muralla St.‚ Intramuros‚ Manila Melting Point and Boiling Point of Organic Compounds Group No. 5 Manacup‚ Cris Vincent L. Oblena‚ Adrian D. Ong‚ Joshua Jyro B.* *Leader ABSTRACT In compounds‚ two of the physical properties affected by the varying structures are melting point and boiling point. Through the use of the Thomas-Hoover Melting Point Apparatus or the micro method‚ the melting and boiling point of
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received that large quantities of such spurious and fatal product have found way in markets of Rajasthan‚ Himachal Pradesh‚ Uttar Pradesh‚ Bihar‚ Madhya Pradesh‚ Karnataka and Orissa. The monster is surfacing in Punjab and Haryana also. Chemicals like urea‚ caustic soda‚ refined oil (cheap cooking oil) and commonly used detergents are used in the preparation of synthetic milk. Detergents are added to emulsify and dissolve the oil in water‚ giving the frothy solution the characteristic white colour of
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