stain 5. Gram’s Iodine Solution 6. Ethyl Alcohol 7. Safranin Solution 8. Paper towels 9. Water 10. Bunsen Burner (Lighter will suffice) 11. Microscope 1. Prepare and heat-fix smears. 2. Stain the slides as follows: a. Flood the crystal violet for one minute. b. Pour off excess dye and wash gently in tap water and drain the slide against a paper towel. c. Expose the smears to Gram’s iodine for one minute by washing with iodine‚ then adding more iodine and leaving it
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basic. This is because I know that the more acidic 7-Up and white grape juice have been known to rot and corrode teeth. The second experiment we conducted was to test for chloride ions and starch. We did this by adding drops of silver nitrate and iodine to Sodium Chloride‚ starch and distilled water. Our hypothesis for this experiment was that the silver nitrate would react in some way with the sodium chloride and the starch‚ but not with the water. The third experiment we conducted was to test
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Introduction This practical experiment was performed in an attempt to observe how enzymes (starch phosphorylase in particular) are affected by varying its temperature before introducing it to the substrate it will be reacting with. A catalyst (enzyme) is a substance that changes the rate of a reaction; for a reaction to take place at all‚ the enzyme must first come into contact with the substrate. Enzymes are subject to a number of factors which effect how fast they can cause a reaction with a substrate;
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Introduction Deficiencies in three micronutrients — iodine‚ iron‚ and vitamin A — are widespread affecting more than a third of the world ’s population. Individuals and families suffer serious consequences including learning disabilities‚ impaired work capacity‚ illness‚ and death. They could waste as much as 5% of gross domestic product (GDP). India ’s life expectancy has more than doubled‚ and infant mortality‚ halved in the last fifty years. India is knocking the door for a permanent position
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The Fukushima Nuclear Power Plant accident caused ecological problems. Abstract The Fukushima nuclear accident triggered a large-scale nuclear leak‚ which has had an immeasurable impact on the global ecological environment. This article addresses‚ in depth‚ features of the Fukushima Nuclear Power Plant accident: during the incident‚ the impact of the incident‚ and aspects of the aftermath. Through an analysis of the Fukushima Nuclear Power Plant accident‚ certain referential and significant
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PREPARATION OF TIN TETRAIODIDE 09/06/2012 Introduction The objective of this project was to prepare tin tetraiodide through the following reaction: Sn+2I2∆SnI4 and to measure the melting point of tin tetraiodide. Tin tetraiodide was recrystallized after the synthesis. The percent yield and the theoretical yield of tin tetraiodide were calculated. Recrystallization is to further improve the purity of tin tetraiodide. The solvent is carefully chosen to be toluene in order to maximize the recovery
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Corporate Social Responsibility. Nestle Case Study. In this work I am going to address how Nestle is managing its corporate social responsibility. Firstly‚ I would like to give a simple definition of CSR. It is the comprehensive approach companies take to meet or exceed the expectations of stakeholders beyond such measures as revenue‚ profit and legal obligations. It covers community investment‚ human rights and emploee relations‚ environmental practices and ethical conduct. (Oliver‚ 2011
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maltose‚ lactose‚ sucrose and starch. There was six tests that were carried out to help identify them‚ these were: Iodine Test‚ Solubility in Water‚ Benedict’s test‚ Acid Hydrolysis‚ Barfoed test and Diastix test. Aim The aim of the experiment which was carried out was to identify the unknown carbohydrates by subjecting them to a series of biochemical tests. The tests were as follows: Iodine‚ Solubility‚ Benedict’s‚ Acid Hydrolysis‚ Diastix and Barfoed test. Methods There was 1g of each solid carbohydrate
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HB105: Introductory Physiology The Action of Enzymes Introduction An enzyme is located in all living cells‚ and is a complex protein molecules. These protein based molecule act as a catalyst. This is a compound that aids chemical reactions without its own structure and state being changed during the process. Catalysts speed up chemical reactions‚ changing substrates into specific produce. Without these enzymes life would not exist. Enzymes are fundamental to all living things as they speed up
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Unit 10. Assignment 2. The Endocrine System: Diseases and Age-Related Changes Cushing Syndrome Cushing Syndrome is a condition that presents itself due to the endocrine system. The endocrine system is responsible for secretion of hormones. Cushing syndrome comes about when the body has excess levels of a hormone called cortisol in the body. Cortisol is very important. It plays a role in managing blood pressure and keeps the cardiovascular system functioning normally. Cortisol also aids the body
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