Investigating the effect of pH on the activity of the enzyme catalase. Introduction Hydrogen peroxide (H2O2) is a very pale blue liquid which appears colourless in a dilute solution‚ slightly more viscous than water. It is a weak acid. It has strong oxidizing properties and is therefore a powerful bleaching agent that is mostly used for bleaching paper. Catalase is a common enzyme found in all living organisms. Its functions include the conversion of Hydrogen Peroxide‚ a powerful and potentially
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P3 Explain factors that may influences communication and interpersonal interaction in a Health and Social Care Environment Environmental Factors Noise – If you are working in a nursery and there are a lot of background noises‚ it will be difficult to hear what the children are saying when they need your help. For example‚ in the nursery there is a child who is using hearing aids and this will amplify background noises as well as the sound of the speaker. Therefore‚ a noisy environment may be difficult
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Symptoms of Dengue 1140811408What is dengue? Dengue is a viral infection transmitted by the bite of an infected female Aedes mosquito. Estimated 100 million cases of dengue fever occurring throughout the world annually. Virulence factors Dengue fever (Fever Dengue) Dengue haemorrhagic fever ((Fever Hemorrhagic The virus that causes dengue fever has four different serotypes DEN-1‚ DEN-2‚ DEN-3‚ and DEN-4. These serotypes have the same genome and morphology but different antigens
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Development of sustainable energy technologies which can continue providing the society with energy-derived benefits without further environmental destructions is highly desired. A series of green energy solutions‚ such as solar‚ wind and biomass energy‚ are employed in the hope of preventing the impending global energy crisis (Wang‚ Chem and Huang 2010). Microbial Fuel Cells (MFCs) which capable of harvesting electricity from renewable biomass and organic wastes arise as a promising yet challenging
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There are numerous fibroblast growth factors (FGF) in our central nervous system. Members in the FGF family play different roles in the Central Nervous system (CNS) [2]. In the FGF family‚ there are 23 members of FGF‚ 10 of those are expressed in the CNS‚ including FGFR 1-4 [2]. There is great focus on FGF 2‚8‚15‚ and 17. FGF2 and 15 are stated throughout the CNS [2]. FGF8 and 17 are confined to specific regions in the brain and only expressed during the beginning stages in the embryo proliferation
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Microbial analysis of soil‚ of top layer from selected sites of Area near Dahisar River Saika N. Esani University of Mumbai (Email – saikae@ymail.com) Abstract: soil samples were collected fortnightly from area near Dahisar River‚ A river in suburb of Mumbai. laboratory analysis started from July 2010 to September 2010. Total bacterial and fungal count were estimated by standard spread plate isolation. Isolated bacteria were subject to colony characterization and were estimated by their
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The Effect of pH on the Rate of Osmosis Using a Glucose Solution Melissa Werderitch Biology 157 11/6/06 Introduction In a journal article written by Florian Lang‚ osmosis is essentially explained as the flow of water from one area to another that are separated by a selectively permeable membrane to equalize concentrations of particles in the two locations (Lang‚ 1997). Osmosis is able to maintain osmotic pressure and regulate a cell’s volume. In a hypotonic () or hypertonic () environment
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To investigate the effect of temperature on an enzyme controlled reaction Introduction and planning For the investigation of enzymes‚ I am going to conduct an experiment to see how temperature can affect the rate of reaction of enzymes by testing it with starch. The enzyme that we are going to use is called amylase. We are going to test this enzyme with starch. By mixing amylase and starch solutions together under different temperature conditions‚ we can record the rate of reaction by taking a
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The Effects of Various Environmental Conditions on the Rate of an Enzyme Catalyzed Reaction Olivia Payne Mr. Kuninsky 10/10/14 Variables: 1. Substrate Concentration 2. Substrate volume 3. Temperature 4. Enzyme Volume 5. Enzyme Concentration 6. pH The independent variable my group addressed was temperature The conditions for temperature were 5°C‚ 24°C‚ 35°C‚ and 45°C We measured the independent variable using thermometers The dependent variable was the rate of an enzyme catalyzed reaction The
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There are many factors of population growth but we can put them into five main categories; birth rates‚ death rates‚ emigration‚ immigration and technology. Technology plays an important part in the population growth around the world. With the new technologies in medicine alone‚ the average age of a person has gone up. Not only that‚ but certain medical issues such as appendicitis where people would just die from can now be cured through surgery. Children born with defects such as a hole in there
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