Sarah Clay Internal Assessment Design Question: Does the caffeine in Coca-Cola affect blood pressure? Hypothesis: The amount of caffeine in Coca-Cola will cause to the adrenal glands‚ located on the top of the kidneys‚ to release more adrenaline which will in turn cause an increase in blood pressure. As the amount of Coca-Cola decreases‚ so will the difference between initial blood pressure and blood pressure after the consumption of the caffeine. Variables: Independent Variables | Dependent
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Energetics 5.1 5.1.1 Endothermic: A reaction in which energy is absorbed. If your reactants are at a lower energy level than your products then the reaction is endothermic this means it has a + ΔH° Exothermic: A reaction in which energy is released. If your reactants are at a higher energy level than your products then the reaction is exothermic this means it has a ΔH° Standard Enthalpy ( ΔH°) The internal energy stored in the reactants. Only changes in enthalpy can be measured
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Pioneer Square Observation Report In Pioneer square there are many places to sit and observe the people whom pass by‚ but perhaps one of the most interesting places to go is the food court inside the pioneer square mall. I found that the best time to observe all the micro cultures was at lunch time‚ when people take a break from their busy lives to come and enjoy a lunch from a variety of choices. The environment is one of the other things that I was able to notice right away‚ not only the setting
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How does light intensity affect the rate of photosynthesis? Does the amount of light intensity increase the rate of photosynthesis in a pondweed? Design aspect 1 Introduction My investigation will be centered on measuring the rate of photosynthesis and whether or not light intensity will affect it. The formula of photosynthesis is Carbon dioxide + water oxygen + glucose with the arrow referring to light energy as a means to convert the CO2 and H2O into oxygen and glucose. Logically‚ one would
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M11/5/MATME/SP1/ENG/TZ1/XX 22117303 mathematics STANDARD level Paper 1 Candidate session number 0 0 Wednesday 4 May 2011 (afternoon) Examination code 2 1 hour 30 minutes 2 1 1 – 7 3 0 3 instructions to candidates Write your session number in the boxes above. not open this examination paper until instructed to do so. Do You are not permitted access to any calculator for this paper. Section A: answer all questions in the boxes
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Cyclone devastates Australia’s banana crop- Practice IA Introduction to theory: Demand and supply are basic economic theories that can help the government and producers make informed decisions like how much to produce‚ and the price they set for products. Connection to article: The recent Cyclone Larry has affected crops in Australia‚ decreasing their supply of bananas drastically‚ as well as causing a decrease in the employment of workers in the banana industry. Analysis: Demand is the curve that
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Student Name: Zack Salem General Aim: Factors that affect vital capacity. Research Question: Does a long distance runner have larger vital capacity than short distance runner? Background Information: This is an experiment to see if long distance runners have a larger vital capacity than short distance runners and why so‚ if it is true. Independent variables: The runners. Dependent variables: The average measure of vital capacity after trials of blowing as hard as possible into a spirometer.
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Historical Investigation into; How were the Nazi Government able to benefit from the Reichstag Fire? Word Count: 1‚752 Section A: Plan of the Investigation The subject of this investigation is to study how the Nazi government was able to benefit from the Reichstag on fire in 1933. I will conduct research into this topic using primary and secondary sources. This evidence will be discussed in section B. Two key texts‚ A.J Nicholls‚ Weimar
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Economics IA Commentary Coversheet Economics Commentary Number: | HL Number 1 | Title of Extract: | UK Unemployment | Source of Extract: | HRM – Human Resource Management | Date of Extract: | 11th of November 2009 | Word Count: | 661 | Date Commentary was written: | 28/11/2009 | Section of Syllabus that the Commentary relates to: | Section 3.5 - Unemployment | Candidate Name: | Yuriy Boldyrev | Candidate Number: | 001124003 | *Note: Commentaries should be read in chronological
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When glucose levels are high: insulin receptors --place glucose receptors on membrane to allow glucose - glucose into cell. In the bonds of glucose‚ energy is placed. but isn’t useable. need to destroy the glucose in controlled way. Organic compounds used. ATP is useable energy. Active transport uses ATP‚ changes shape of proteins‚ going against conc. gradient‚ changes form atp to adp +Pi as one phosphate group lost. Mitochondria double membrane inner membrane space ribosomes
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