hydrolysis of the starch under these conditions. This reaction is the result of the formation of polyiodide chains from the reaction of starch and iodine. The amylose‚ or straight chain portion of starch‚ forms helices where iodine molecules assemble‚ forming a dark purple/black color. The amylopectin‚ or branched portion of starch‚ forms much shorter helices and iodine molecules are unable to assemble‚ leading the color to be of an orange/yellow hue. As starch is broken down or hydrolyzed into smaller
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biology FOLIO BIOLOGY POLLUTION NIK ‘AINAA SYAKIRAH BT NIK GHAZALI 5 IBNU SINA INTRODUCTION Pollution is the introduction of contaminants into a natural environment that causes instability‚ disorder‚ harm or discomfort to theecosystem i.e. physical systems or living organisms. It can also be define as any undesirable changes in physical‚ chemical or biological characteristics of the natural environment‚ brought about when harmful substances or energy released by human activities. Pollution
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detox at home. By receiving the right treatment during detox can manage withdrawal symptoms and even prevent more serious symptoms from developing. Alcohol Withdrawal Timeline Assuming that a patient has no other medical or psychological conditions and they are no using any other addictive substances‚ the alcohol withdrawal timeline has three phases. 1. Acute withdrawal: During the acute withdrawal phase‚ a patient can experience of the symptoms mentioned above‚
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B io Factsheet September 2000 Number 76 The Eukaryotic cell cycle and Mitosis This Factsheet covers the relevant AS syllabus content of the major examining boards. By studying this factsheet the candidate will gain a knowledge and understanding of: • the different phases of the eukaryotic cell cycle (a eukaryotic cell has membrane bound organelles) • the importances of mitosis • the process of mitosis The eukaryotic cell cycle Fig 2. Quantity of DNA in the cell during different
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spectroscopy. Key words : pyrrolidine‚ enamine‚ mild condition‚ NMR 1. Introduction The formation reactions of carbon-carbon bonds are important in organic synthesis [1-5]. In general‚ acylation reaction is one of the important carbon-carbon forming reactions. It belongs to the reactions of the enolate derived from a carbonyl group with an electrophilic carbon such as Aldol‚ Claisen‚ Michael reaction and alkylation of metal enolates [6-9].The acylation reaction as well as above other reactions
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Brandon Hunt AP European History Timeline 4th period. European History Timeline 1.) Black Death – 1348 – 14th century disease that killed off much of the European population. The disease was contracted from fleas giving it off to black rats that passed it amongst the villages. In the times current studies‚ Boccaccio noticed that‚ black boils and spots cover the infected person leaving them a few days to live. 2.) Statue of Labourers – 1351 – This law was passed so the peasants would stop taking
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Biology Project Autumn Brown 3rd block Mrs. Stephens More than 2‚000 years ago‚ Aristotle began grouping plants and animals into various categories. Although he did not consider the idea that different organisms were related by descent‚ he devised a system that placed these organisms in a hierarchy. Through classification systems‚ scientist have found it easier to find answers to important questions. This way
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Biology Exam Review Unit One – Biochemistry What is an isotope? Isotope - An isotope is all atoms of the same element that have the same number of protons‚ but they may have different numbers of neutrons in the nucleus. - This means that all atoms with the same atomic number can have different atomic masses. - Because they have the same number of protons and electrons‚ they behave exactly the same in chemical reactions. Radioisotope - The nuclei of some isotopes of an element are unstable
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Gandhi Time line: 1869 - October 2‚ Mohandas Gandhi was born in Porbandar‚ India 1876 - Gandhi moves with his family to Rajkot‚ India 1883 - Gandhi gets married at the age of thirteen to Kasturba Makanji 1888 - Gandhi sails to England so that he can study law 1891 - Gandhi returns to India and begins to practice law 1893 - Gandhi accepts a job in South Africa 1903 - Gandhi decides to open a law office in Johannesberg‚ South
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2013‚ Section 3 Prepared By Md Abdulla Al Mamun Fahim ID: 102 0366 030 Mahidur Rahman Khan ID: 102 0625 030 Md Nurul Azim Rifat ID: 101 0847 030 Tahsin Shahab Uddin ID: 101 0692 030 Prepared for Dr. S.M. Mostafa Kamal Khan Department of Biology and Microbiology North South University Date of Submission: 20th August‚ 2013 Sl | Topic | Page | 1 | Introduction | 2 | 2 | Description | | | 2.1 Impact on Air | 3 | | 2.2 Impact on Water | 3 | | 2.3 Impact on Soil Pollution | 5 |
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