"Amino Acid" Essays and Research Papers

AMINO ACIDS SUSMITA DAS SWAPNA MONDAL OBJECTIVES  To study about Amino acids.  To study the classifications of amino acids based on different headings.  To study the functions of amino acids. INTRODUCTION  Amino acids:• Amino acids are monomers of protein. • Amino acids are group of organic compounds which contain two functional groups. One is Amino group(NH2) and the other is Carboxyl group(COOH). • Proteins are broken down into amino acids on hydrolysis. • Each amino acid also have a...

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structures and properties of amino acids know the groups of amino acid What are amino acids? Amino acids are molecules that when combined with each other  proteins. Amino acids contain a central tetrahedral carbon atom (α-carbon) amine group, carboxyl group, R-side chain The R-side chain determines the different amino acids There are 20 common amino acids Amino acids can join via peptide bonds Several amino acids occur only rarely in proteins Some amino acids are not found in proteins...

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Amino acid present in the lumen of the small intestine The goal is to cross through the epithelial cell membrane to enter into the epithelial cell’s cytoplasm – its charged cuz of side chains To get through the membrane the amino acid must cross the Simple columnar epithelial cells lining the apical surface of the small intestinal tract. These cells are impermeable to any harmful bacteria that may be ingested by the body, but permeable to necessary ions. Absorption of amino acids occurs...

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Alanine (ala, A) (neutral, non-polar) Arginine (arg, R) (basic, polar) Asparagine (asn, N) (neutral, polar) Aspartic Acid (asp, D) (acidic, polar) Cysteine (cys, C) (neutral, slightly polar) Glutamic Acid (glu, E) (acidic, polar) Glutamine (gln, Q) (neutral, polar) Glycine (gly, G) (neutral, non-polar) Histidine (his, H) (basic, polar) Isoleucine (ile, I) (neutral, non-polar) Leucine (leu, L) (neutral, non-polar) Lysine (lys, K) (basic, polar) Methionine (met,...

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Amino Acids Glycine is the smallest of the amino acids. It is ambivalent, meaning that it can be inside or outside of the protein molecule. In aqueous solution at or near neutral pH, glycine will exist predominantly as the zwitterion. Alanine is a hydrophobic molecule. It is ambivalent, meaning that it can be inside or outside of the protein molecule. The α carbon of alanine is optically active; in proteins, only the L-isomer is found. Serine differs from alanine in that one of the methylenic...

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Separation of Amino Acids by Paper Chromatography Chromatography is a common technique for separating chemical substances. The prefix “chroma,” which suggests “color,” comes from the fact that some of the earliest applications of chromatography were to separate components of the green pigment, chlorophyll. You may have already used this method to separate the colored components in ink. In this experiment you will use chromatography to separate and identify amino acids, the building blocks of proteins...

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Abstract In this experiment paper chromatography was used in order to identify two unknown amino acids using eight known amino ones. The two unknown ones were identified by comparing the distance they travelled up the chromatography paper and their Rf values to the corresponding values of the other eight known amino acids. The unknown amino acids identified were Glycine and Methionine. Introduction Proteins in cells are important in many ways. There are different types of proteins such as...

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non-essential amino acids, amino acid remodeling, and conversion of non-amino acid carbon skeletons into amino acids and other derivatives that contain nitrogen. However, the liver is the major site of nitrogen metabolism in the body. In times of dietary surplus, the potentially toxic nitrogen of amino acids is eliminated via transaminations, deamination, and urea formation; the carbon skeletons are generally conserved as carbohydrate, via gluconeogenesis, or as fatty acid via fatty acid synthesis pathways...

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Electrophoresis of Amino Acids Introduction: Electrophoresis is a separation technique based on the movement of charged ions under the influence of an electrical field. This technique is primarily used for the separation of amino acids and peptides on the basis of their charge. All amino acids contain ionizable groups that cause the amino acids, in solution, to act as charged polyelectrolytes that can migrate in an electric field. The amino acids with a net positive charge will migrate toward...

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PROTEINS AND NUCLEIC ACIDS 28/11/13 Qn. Which two of the four macromolecules do you believe to be the most important for life? Give evidence to support your suggestion (include a full description of the macromolecules you describe both in terms of structure and function) Introduction All the four macromolecules=lipids, proteins, carbohydrates and nucleic acids= are essential for the functioning of an organism's body (Campbell, biology). They work hand in hand to help us survive. For example...

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