The Identification and Production of Materials 1. Fossil fuels provide both energy and raw materials such as ethylene‚ for the production of other substances. Students Learn To: .2 Identify the industrial source of ethylene from the cracking of some of the fractions from the refining of petroleum. • Ethylene is produced either from natural gas or crude oil‚ which are mixtures of hydrocarbons. One method involves… Cracking: a process by which hydrocarbons with higher molecular
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Cellular respiration‚ which synthesis ATP‚ begins with glycolysis‚ wherein a six-carbon glucose is broken down into two three-carbon molecules called pyruvate. This process requires the input of two ATPs to produce two pyruvates‚ two NADHs‚ and 4 ATPs. The NADHs are synthesised when NAD+‚ delivered by B vitamins‚ become bound to hydrogen and energised electrons1. Following glycolysis is the Krebs cycle and electron transport chain respectively. The Krebs cycle uses the two pyruvates produced in glycolysis
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main Islamic arch signature as the horse shoe and the pointed arch. In addition‚ I would definitely use the smart sustainable design systems which it delivers through the use of rammed earth technique which provides self air conditioning with its condensation/evaporation temperature reaction due to its adaptive relation to the exterior. With that‚ calculations of air flow circulations which work jointly with the implementation of such sustainable materials is of
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biogeochemical cycles‚ each with a different function and relationship to micronutrients. They can be classified as either gaseous‚ sedimentary‚ or hydrololic. The water cycle is a hydrologic cycle that moves water in the biosphere through evaporation‚ condensation and precipitation. Two sedimentary cycles are the sulfur and phosphorous cycle. Their main reservoirs are in soil and rock sediments. Sulfur enters the cycle as hydrogen sulfide and is oxidized to sulfur dioxide. Sulfur dioxide and water vapor
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1. | Which of the following biological molecules is/are linked by covalent bonds formed by the removal of the elements of water from the reactants (a kind of condensation reaction)? | | A. | Oils | B. | Waxes | C. | Proteins | D. | Starch | E. | All of the above | | Incorrect See Section 3.2: What Are the Chemical Structures and Functions of Proteins? | Points Earned: | 0/1 | Correct Answer: | E | Your Response: | D | 2. | There are a number of functional groups in biological
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ASBiology and Disease * Causes of disease * Pathogens Disease suggests a malfunction of the body or mind which has an adverse effect on good health For a micro-organism to be considered a pathogen it must * Gain entry to the host * Colonise the tissue of the host * Resist the defences of the host * Cause damage to the host tissues Pathogen Infection Disease Entry pathways * Gas exchange system * Digestive system Natural defences * Mucous layer
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Braz Dent J (2002) 13(2): 137-141 Bilateral fusion ISSN 0103-6440 137 Bilateral Fusion of Mandibular Second Molars with Supernumerary Teeth: Case Report Eduardo NUNES 1 Ivaldo Gomes de MORAES 2 Paulo Márcio de Oliveira NOVAES 3 Simone Maria Galvão de SOUSA4 1 Department of Endodontics‚ Pontificial Catholic University‚ Belo Horizonte‚ MG‚ Brazil 2 Department of Endodontics‚ Bauru Dental School‚ Bauru‚ SP‚ Brazil 4 Department 3 Private Endodontic Practice‚ Belo Horizonte‚
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II PUC – CHEMISTRY (34) MODEL QUESTION PAPER - 1 Time: 3hours 15 minutes Maximum marks: 70 Instructions: 1. The question paper has four parts: A‚ B‚ C and D. All parts are compulsory. 2. Write balanced chemical equations and draw labeled diagrams wherever required. 3. Use log tables and the simple calculator if necessary. (Use of scientific calculators is not allowed) PART-A I. Answer ALL of the following. (Each question carries 1 mark) 10x1=10 (Answer each question in one word or
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oceans * Movements of moist air inland * Condensation and precipitation * Run-off on the surface or sub-surface back to the ocean * Plus additional minor cycles * Involves the exchange of water with the atmosphere‚ the earth‚ and the different water forms * Done when clouds gain water vapor from the various water forms * Evaporation – process where water turns into steam or gas when the temperature is hot * Condensation – water vapor goes into the air and into the clouds
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of heat energy! I was a gas! No definite volume or shape! It was so fun to be free‚ I didn’t feel so bad for CO2 anymore! That day‚ I was one in billions because I underwent evaporation‚ and later on‚ I was one in billions because I underwent condensation! I knew i was condensing. I was getting closer and closer to all my other molecules. By chance‚ I then condensate into my own little well‚ where my molecule buddies ask me about my trip. When they asked me if
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