Ana Drummond Biology 2420 April 11‚ 2012 The Complement System The complement system is a nonspecific defense mechanism activated in response to invading organisms. This system gets its name from the fact that it complements the action of antibodies. It is the primary mechanism activated by antibodies to kill foreign cells by forming membrane attack complexes. In addition to directly lysing the invading organisms it also reinforces the general inflammatory tactics. It can be activated
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Symbiotic Nitrogen Fixation 1. Rhizobium - Legume Symbiosis Many leguminous plant species can enter into a symbiotic relationship with root-nodule bacteria‚ collectively referred to as rhizobia. The legumes belong to the order Fabales‚ family Leguminosae (alternatively Fabaceae)‚ in eurosid clade I (Doyle and Luckow 2003). Traditionally‚ three main subfamilies are distinguished: Caesalpinoidae‚ Mimosoidae and Papilionidae. Only one nonlegume‚ the woody plant Parasponia sp.‚ can be nodulated
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EFFECT OF THE SYMBIOTIC NITROGEN FIXATION ON SOYBEAN INTRODUCTION Legume plants receive nitrogen from Rhizobium which makes them possible to grow in nitrogen poor soil. In return‚ legume plants supply Rhizobium with carbohydrate‚ which is energy. This process is called nitrogen fixation‚ also known as the symbiosis of legume and Rizobium. However‚ it would be inefficient for plants in nitrogen rich soil to transfer their energy to Rhizobium in exchange of nitrogen when sufficient amount of
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discovered the complement as a heat-labile component of normal plasma which caused the killing and opsonisation of bacteria. This activity of killing and opsonisation of bacteria were to complement the antibacterial activity of antibody. The complement system was a group of more than 20 serum glycoprotein which had been synthesized by the liver that were secreted by hepatocytes and circulating in the tissue fluids and in the blood. Also most of the proteins that formed the complement were inactive;
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termed nitrogen fixation; these bacteria are either free-living or form symbiotic associations with plants or other organisms (e.g. termites‚ protozoa) other bacteria bring about transformations of ammonia to nitrate‚ and of nitrate to N2 or other nitrogen gases many bacteria and fungi degrade organic matter‚ releasing fixed nitrogen for reuse by other organisms. All these processes contribute to the nitrogen cycle. We shall deal first with the process of nitrogen fixation and the nitrogen-fixing
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Evergreen Do we as humans only live to die? One can’t understand the life of another‚ unless he/she has experienced that life first hand. People don’t realize that we (humans) are all playing the same role in life. William Shakespeare brilliantly clarifies the true meaning of life through his poem “All the worlds a stage.” Truth of life‚ destiny‚ and human ambition can be seen more clearly through theater than from life itself. The most elaborate themes from the poem are: the fact of all people
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Fanaticism ’My son the fanatic’ Translated from Latin fanaticism means one-sidedness‚ which describe it very well. It is when a person is filled with an exaggerated interest and bias enthusiasm‚ often for a religious case. A fanatic will there fore not listen to other arguments than those‚ which already supports the assumed position. Nevertheless‚ fanaticism can actually be many things. It can be quite harmless such as if a person only can tolerate one kind of flower in his garden. This kind
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ALCIAN BLUE RATIONALE FOR USE Alcian blue is a water soluble‚ amphoteric copper phthalocyanine‚ which is most often used as a basic dye. In general‚ alcian blue has an affinity for sulfated and carboxylated groups of acid mucopolysaccharides‚ but the specific group demonstrated is dependent on the dye solution pH. RECOMMENDED FIXATIVES 10% neutral buffered formalin and Bouin’s fixative. AVOID Chromate Fixatives MODE OF ACTION (1‚ 2‚ 3) Alcian blue binds electrostatically with
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Visit www.myignou.in to download more solved assignments! EEG-02/BEGE-102 Solved Assignment 2012-2013 Presented by www.myignou.in V. There are only two nasal-consonants in English ans) False VII. We normally use the falling tone in commands ans) True VIII.We normally use the rising tone in polite requests ans) True IX. Complex words are combinations of free morphemes ans) False X. A stem consisting of a simple free morpheme is a root ans) True 1 | P a g e Downloaded from www.myignou
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Elasticity: Complements and Substitutes D. Buress‚ R. Jackson‚ J. Jones‚ P. Nelson‚ I. Skidmore ECO/365 February 2‚ 2015 R. Caratao Elasticity: Complements and Substitutes This week our team was tasked with discussing the concepts of complementary and substitute products and their effects on supply and demand. Most of the discussions were centered on getting a true and valid understanding of the definitions for each of these economic scenarios. Complements and Substitutes As we looked at why some
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