BIOL 1362-CARBOHYDRATE TUTORIAL 1. List the names and give the Fisher projection formulae and functions of three (3) biologically important monosaccharides in the cell. 2. In each of the above structures‚ indicate the chiral centres using an *. 3. Choose two (2) of the above and carry out cyclisation to achieve furanose and pyranose ring structures. 4. In the ring structures drawn in three (3)‚ indicate whether the structures are α or β. 5. How many chiral centres are present in D-fructose? Determine
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Using the information I recorded in IProfile‚ I was able to record my intake of protein‚ carbohydrates and lipids‚ the amount of fiber intake‚ and notice pattern or trends in my diet that could be modified. Initially‚ I was able to record my intake of protein‚ carbohydrates and lipids. Of the foods I consumed over the course of three days‚ mostly from fast food restaurants‚ the foods that provided the most protein were the Burger King sausage and cheese
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153‚ 69120 Heidelberg‚ the ¶Department of Bioinformatics‚ Biozentrum‚ University of Wurzburg‚ Am Hubland‚ 97074 Wurzburg‚ and the Biochemistry Centre‚ ¨ ¨ University of Heidelberg‚ Im Neuenheimer Feld 365‚ 69120 Heidelberg‚ Germany Iron regulatory proteins (IRPs) 1 and 2 post-transcriptionally control mammalian iron homeostasis by binding to iron-responsive elements (IREs)‚ conserved RNA stem-loop structures located in the 5 - or 3 -untranslated regions of genes involved in iron metabolism (e.g. FTH1
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HPLC detection and quantification of polyphenolic compounds Detection and quantification of selected phenolic compounds in the ethanol extract were determined by HPLC-DAD analysis as described by Ismet et al. [13] with some modifications. It was carried out on a Dionex UltiMate 3000 system equipped with quaternary rapid separation pump (LPG-3400RS) and photodiode array detector (DAD-3000RS). Separation was performed using Acclaim® C18 (5µm) Dionex column (4.6 x 250 mm) at 30 ºC with a flow rate of
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Arch. Biol. Sci.‚ Belgrade‚ 62 (1)‚ 185-189‚ 2010 DOI:10.2298/ABS1001185K COMPARATIVE IN VITRO ANTHELMINTIC ACTIVITY OF THREE PLANTS FROM THE AMARANTHACEAE FAMILY ASHOK KUMAR‚ B.S1*‚ LAKSHMAN‚ K2.‚ JAYAVEERA‚ K.N3.‚ NANDEESH‚ R4.‚ MANOJ‚ B1. and RANGANAYAKULU‚ D5. Department of Pharmacognosy‚ Sri K.V.College of Pharmacy‚ 562101 Chickballapur‚ Karnataka (India). 2 Department of Pharmacognosy‚ PES College of Pharmacy‚ 560002 Bangalore‚ Karnataka‚ (India). 3 Department of Chemistry‚ Jawaharlal
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are three hypotheses that explain this. Firstly‚ the basic biologic role of the HER-2 receptors is considered. Excess HER-2 receptors over-activate the PI3K/Akt and MAPK pathway‚ leading to an inhibition of apoptosis and depression of regulatory proteins of the cell cycle respectively. Coupled with other survivalpromoting factors such as the secretion of basement membrane degradative enzymes‚ the formation of invadopodia to assist in cell migration and the promotion of angiogenesis via VEGF‚ overexpression
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Department of Biochemistry and Molecular Biology‚ University of Miami School of Medicine‚ Miami‚ Florida 2 Department of Physiology and Biophysics and the Neurosciences Program‚ University of Miami School of Medicine‚ Miami‚ Florida 1 Summary In protein and RNA macromolecules‚ only a limited number of different side-chain chemical groups are available to function as catalysts. The myriad of enzyme-catalyzed reactions results from the ability of most of these groups to function either as nucleophilic
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perfect fidelity for DNA replication.[1][2] In a cell‚ DNA replication begins at specific locations‚ or origin of replication‚ in the genome.[3] Unwinding of DNA at the origin‚ and synthesis of new strands‚ forms a replication fork. A number of proteins are associated with the fork and assist in the initiation and continuation of DNA synthesis. Most prominently‚ DNA polymerase synthesizes the new DNA by adding matching nucleotides to the template strand. DNA replication can also be performed
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Identification of Macromolecules Introduction The most common macromolecules found in living organisms are lipids‚ carbohydrates‚ proteins and nucleic acids. Briefly‚ the meaning of macromolecules is that they normally contain two or more molecules in them and their main functions are to store energy‚ information and much more. Most foods are known to be combinations of macromolecules. While some of these compounds can be detected by taste tests‚ many cannot. Scientists then use certain
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into four major categories: proteins‚ nucleic acids‚ lipids and carbohydrates. These are mainly composed of polymers‚ long molecules made up of a large number of small‚ similar molecules‚ or monomers. Proteins are polymers of amino acids. Long amino acid chains are folded into complex shapes‚ the shape of each determining the function of the protein. They are complex organic compounds‚ essential to the functioning as well as the structure of all organic cells. Proteins range in size from a few
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