necessary to support life. Here it deals with the nutrition in microorganism which is called as microbial nutrition. Nutrients may be divided into three general‚ often overlapping categories: Those that supply energy‚ those that supply carbon‚ and those that supply any and everything else. In this lecture we will consider nutrition from the point of view of microorganisms‚ though many of the principles apply to macro organisms equally well. According to Webster nutrition
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cold and dark‚ and you tend to get carbon and hydrogen fluoride produced. It is of no particular interest. For example: The reaction between alkanes and iodine Iodine doesn’t react with the alkanes to any extent - at least‚ under normal lab conditions. The reactions between alkanes and chlorine or bromine There is no reaction in the dark. In the presence of a flame‚ the reactions are rather like the fluorine one - producing a mixture of carbon and the hydrogen halide. The violence
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or group of atoms‚ (FUNCTIONAL GROUP) in their structure. Catenation The ability to form bonds between atoms of the same element. Carbon catenates to form chains and rings‚ with single‚ double and/or triple covalent bonds. Q.1 • Why does carbon form so many catenated compounds ? • Why does silicon undergo catenation to a lesser extent than carbon ? Homologous Series A series of compounds of similar structure in which each member differs from the next by a common repeating unit
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Calculate the mass of stearic acid required to form the monolayer‚ use it to estimate the thickness of the monolayer (which is related to the length of the stearic acid molecule)‚ and then use the number of carbon atoms in stearic acid to approximate the diameter and then the volume of a carbon atom calculate a value for the Avogadro constant compare your calculated value for the Avogadro constant with a known value and determine the percent error in your value This is a general overview
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Until the discovery of Bucky ball‚ the graphite and diamond were the only molecules formed using carbon atoms. Even though the founder of Bucky ball was curl‚ Kroto and Smalley‚ the fullerene molecule was named after Richard Buckminster fuller (1895-1983) an famous architect‚ because the structure of Bucky ball looks same as that of the geodesic dome
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photosynthesis in transforming light energy to chemical energy and recall the raw materials for this processco2+h2oglucose+o2+h2othis is then stored as carbs and starch | * outline the role of the production of high energy carbohydrates from carbon dioxide as the important step in the stabilisation of the sun’s energy in a form that can be used by animals as well as plants harnesses the suns energy for use by all organisms | * identify the photosynthetic origins of the chemical energy
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Introduction Organic compounds are the complex compounds of carbon. Because carbon atoms bond to one another easily‚ the basis of most organic compounds is comprised of carbon chains that vary in length and shape. Hydrogen‚ nitrogen‚ and oxygen atoms are the most common atoms that are generally attached to the carbon atoms. Each carbon atom has 4 as its valence number which increases the complexity of the compounds that are formed. Since carbon atoms are able to create double and triple bonds with other
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Organic Chemistry/Biochemistry 1: Compounds Important to Life • Biologists classify compounds into organic compounds and inorganic compounds. Organic Compound: a compound that is derived from living things and contains carbon Inorganic Compound: a compound generally derived nonliving things • Water Water is an inorganic molecule with unique properties that make it one of the most important compounds for living things. In the water molecule (H2O)‚ the hydrogen and oxygen atoms bond
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CARBON 6 9 ( 2 0 1 4 ) 6 3 8 –6 4 0 Available at www.sciencedirect.com ScienceDirect journal homepage: www.elsevier.com/locate/carbon Letter to the Editor Carbon nanodots with strong nonlinear optical response Dezhi Tan a‚ Yuya Yamada b‚ Shifeng Zhou c‚ Yasuhiko Shimotsuma b‚ Kiyotaka Miura b‚ Jianrong Qiu a‚c‚* a State Key Laboratory of Silicon Materials‚ Department of Materials Science and Engineering‚ Zhejiang University‚ Hangzhou‚ Zhejiang 310027‚ PR China b Department of Material Chemistry
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hydrocarbons Crude oil: a complex mixture of hydrocarbons found in layers of rock beneath the earth’s surface Aliphatic Hydrocarbons: contain chains of carbon atoms that may be branched Aromatic Hydrocarbons: contain Benzene rings- rings of carbon atoms with delocalized electrons Alkanes all have different boiling points dependent on the length of the carbon chain in the molecule. The smaller chains ie. the most volatile hydrocarbons will leave at the top of the column as gases because they have the lowest
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