Decomposition of Hydrogen Peroxide by Potassium Iodide Brief Description: Two solutions are mixed resulting in an eruption of foam resembling a huge stream of toothpaste. This is the classic “Elephant Toothpaste” reaction. Purpose/Goal: Procedure presents an example of a catalyzed reaction. Explanation of Experiment: The rapid evolution of oxygen gas is produced by the following reaction: 2 H2O2 (aq) = 2 H2O (l) + O2 (g) + heat The decomposition of hydrogen peroxide in the presence
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For many years Hydrogen peroxide was widely used for disinfecting‚ sterilization and its antiseptic properties‚ it is cheap and easily available OTC at any drug store or grocery store. “This readily available oxidant is rapidly converted to the highly reactive hydroxyl radical that damages an array of cellular components” (Atiyeh‚ Dibo‚ and Hayek‚ 2009). “The Medicines and Healthcare Products Regulatory Agency (MHRA‚ 2014). Have issued a warning regarding its use in surgery and in deep and large
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INTRODUCTION Enzymes are biological catalysts that speed up chemical reactions‚ without being used up or changed. Catalase is a globular protein molecule that is found in all living cells. A globular protein is a protein with its molecules curled up into a ’ball’ shape. All enzymes have an active site. This is where another molecule(s) can bind with the enzyme. This molecule is known as the substrate. When the substrate binds with the enzyme‚ a product is produced. Enzymes are specific to their
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Associate Level Material Medical Terminology Breakdown Break down 10 medical words from your chosen article. Place the component parts in the correct boxes. Copy and paste this template into your Week Eight paper. | |Medical Word |Prefix |Combining form |Suffix |Definition | |1 | | | | |
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Cell Analogy A Nucleus is like the city hall. The Nucleus directs the activities of all organelles. The City hall controls all activity that occurs in the city. The mitochondria are like the power plants. The mitochondrion converts chemical energy into energy for the cell. The power plants provide energy to all parts of the city. The vacuole is like the land fill. The vacuole stores materials containing water‚ food‚ or waste. The land fill stores harmful waste products safely. The Golgi
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side with his head and ears down. My uncle went to check if grandpa was all right but he wasn’t. My grandfather died that beautiful night next to his loyal dog. After that night‚ the smiles that we had turn into tears and sadness. His dog didn’t want to eat or go out for the following day. Rocco was sad and we could fell it. My grandfather had that dog for 15 years‚ and after that time Rocco was like part of the family. A week went by and Rocco still didn’t want to eat or do anything. We were getting
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11 December 2012 Synthesis Prompt- Topic: Do Animals Have Souls? The definition of a soul differs from person to person. To some‚ what makes a human different from the rest of the animals is the soul. Many say that since animals’ intelligence is inferior to that of a human’s‚ they have no soul; since the soul is what makes humans the “master species”. It is revealed that animals are simply composed differently from humans. As said by Descartes‚ animals act solely upon their instincts and are unable
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To what extent we can say animals have language? Are animals capable of language? It is in the opinion of the author that animals do not have the capability of language; this essay will focus and put forward the evidence as to why this opinion takes place. Language is a form of communication; it can be visual‚ audio or sensory. In humans the vocal language provides only 10 per cent of how we communicate‚ body language plays a much higher role‚ however‚ both verbal and non verbal language in humans
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Botany Lab Introduction to Microscope Circa 1000 AD. = the first vision aid was invented (inventor unknown) called a reading stone. Circa 1284= Italian‚ Salvino D’ Armante is credited inventing the first bearable eye glass. 1590= two dutch eye glass makers‚ Zaccharias Janssen and Hans Janssen experimented with multiple lenses. 1665= English Physicist‚ Robert Hooke looked at a silver of cork through a microscope lens and noticed some “pores” or “cells”. 1674= Anton Van Leeuwenhoek built
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2013 Do Animals Really Have Emotions? Animal emotion is a difficult and controversial subject. Scientific research is confirming what humans intuitively know: that animals have feelings and able to experience diverse types of emotions. Skeptics believe there are no possible ways animals can have emotions. They refuse the idea animals experience happiness or any other type of emotions as anthropomorphism; which occurs when humans project their own characteristics or behaviors to animals. Josh Clark
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