failure or stones, or loss of immunity. Pharmacotherapy Modulation of purinemetabolism has pharmacotherapeutic value. Purine synthesis inhibitors inhibit the proliferation of cells, especially leukocytes ... in organ transplantation it inhibits purine synthesis by blocking inositol monophsophate dehydrogenase. Also Methotrexate indirectly inhibits purine synthesis by blocking the metabolism of folic ... kegg pathway map map00230.html Purinemetabolism Reference pathway http www.pumpa.org.uk PUMPA Purine Metabolic Patients Association Protein metabolism Nucleotide metabolism Nucleotide metabolism intermediates Inborn errors of purine pyrimidine metabolism Category Purines Category Metabolic pathways ...Many organisms have metabolic pathway s to synthesize and break down purine s. Synthesis Purines are biologically synthesized as nucleotide s bases attached to ribose 5 phosphate . A key regulatory step is the production of ribose 5 phospho D ribosyl 1 pyrophosphate PRPP by PRPP synthetase, which is activated by inorganic phosphate and inactivated by purine ribonucleotides. It is not the committed step to purine synthesis because PRPP is also used in pyrimidine synthesis and salvage pathways. The first committed step is the reaction of PRPP, glutamine and water to 5 phosphoribosylamine, glutamine, and pyrophosphate catalyzed by pyrophosphate amidotransferase, which is activated by PRPP and inhibited by AMP, GMP and IMP. Both adenine and guanine are derived from the nucleotide inosine monophosphate IMP , which is synthesised on a pre existing ribose phosphate through a complex pathway using atoms from the amino acids glycine , glutamine , and aspartic acid , as well as formate ions transferred from the coenzyme folic acid tetrahydrofolate . GMP IMP dehydrogenase converts IMP into Xanthosine ... A nucleotidase creates guanosine Purine nucleoside phosphorylase converts guanosine to guanine ... acid , then a nucleotidase creates inosine Purine nucleoside phosphorylase acts upon inosine to create ... more details
Infobox disease Name Inborn errors of purine pyrimidine metabolism Image Caption DiseasesDB ICD10 ICD10 E 79 e 70 ICD9 ICD9 277.2 ICDO OMIM MedlinePlus eMedicineSubj eMedicineTopic MeshID D011686 Inborn errors of purine pyrimidine metabolism are a class of inborn error of metabolism disorders specifically affecting purinemetabolism and pyrimidine metabolism . An example is Lesch Nyhan syndrome . Urine tests may be of use in identifying some of these disorders. ref name pmid10102915 cite journal author Wevers RA, Engelke UF, Moolenaar SH, et al. title 1H NMR spectroscopy of body fluids inborn errors of purine and pyrimidine metabolism journal Clin. Chem. volume 45 issue 4 pages 539 48 year 1999 month April pmid 10102915 doi url http www.clinchem.org cgi pmidlookup?view long&pmid 10102915 accessdate 2008 05 07 ref References reflist Purine, pyrimidine, porphyrin, bilirubin metabolic pathology medicine stub Category Inborn errors of metabolism ... more details
2,6 diiodopurine 11 . The product was reduced to purine 1 using zinc dust. Image FischerPurineSynthesis.gif Metabolism This section is linked from Metabolism main Purinemetabolism Many organisms have ... of purines in purinemetabolism , purine can also be created artificially. Purine 1 is obtained ...chembox verifiedrevid 417833941 ImageFile Ref chemboximage correct ?? ImageFile Purine chemical structure.png ImageSize 345px ImageFile2 Purine2.png IUPACName 7 H purine OtherNames Section1 Chembox Identifiers ... 1015 SMILES c1c2c nc nH 2 ncn1 MeSHName Purine Section2 Chembox Properties C 5 H 4 N 4 Appearance Density ... A purine is a heterocyclic compound heterocyclic aromatic organic compound , consisting of a pyrimidine ... , and coenzyme A . Purine 1 itself, has not been found in nature, but it can be produced by organic ... . Adenosine activates adenosine receptor s. History The name purine purum uricum was coined by the Germany ... low in purines http www.dietaryfiberfood.com purine food.php . Examples of high purine sources ... of purine is also contained in beef, pork, poultry, fish and seafood, asparagus, cauliflower, spinach .... ref http www.healthcastle.com gout.shtml Gout Diet Limit High Purine Foods Bot generated title ref ... of purine rich vegetables or protein is not associated with an increased risk of gout . ref http content.nejm.org cgi content abstract 350 11 1093 NEJM Purine Rich Foods, Dairy and Protein Intake ... A One step Synthesis of Purine Ring from Formamide url http www.journalarchive.jst.go.jp english jnlabstract ... removed from the filtrate by vacuum distillation, and almost pure purine obtained yield 4.93 grams 71 yield from formamide consumed . Crystallization from acetone afforded purine as colorless crystals ... basicpurines.gif The Traube purine synthesis 1900 is a classic reaction named after Wilhelm Traube ... , Alfred Hassner, C. Stumer ISBN 008043259X 2002 ref Image TraubePurineSynthesis.svg Traube purine ... purine food.php Purine Content in Food Nucleobases, nucleosides, and nucleotides ... more details
Purine synthesis may either refer to In vivo purine synthesis Purinemetabolism Synthesis Laboratory purine synthesis Purine Synthesis disambig ... more details
enzyme Name purine nucleosidase EC number 3.2.2.1 CAS number 9025 44 9 IUBMB EC number 3 2 2 1 GO code 0008477 image width caption In enzymology , a purine nucleosidase EC number 3.2.2.1 is an enzyme that catalysis catalyzes the chemical reaction a purine nucleoside H sub 2 sub O math rightleftharpoons math D ribose a purine base Thus, the two substrate biochemistry substrates of this enzyme are purine nucleoside and water H sub 2 sub O , whereas its two product chemistry products are D ribose and purine base . This enzyme belongs to the family of hydrolase s, specifically those glycosylases that hydrolyse N glycosyl compounds. The systematic name of this enzyme class is purine nucleoside ribohydrolase . Other names in common use include nucleosidase , purine beta ribosidase , purine nucleoside hydrolase , purine ribonucleosidase , ribonucleoside hydrolase , nucleoside hydrolase , N ribosyl purine ribohydrolase , nucleosidase g , N D ribosylpurine ribohydrolase , inosine adenosine guanosine preferring nucleoside hydrolase , purine specific nucleoside N ribohydrolase , IAG nucleoside hydrolase , and IAG NH . This enzyme participates in purinemetabolism and nicotinate and nicotinamide metabolism . Structural studies As of late 2007, 11 tertiary structure structures have been solved for this class of enzymes, with Protein Data Bank PDB accession codes PDB link 1EZR , PDB link 1HOZ , PDB link 1HP0 , PDB link 1KIC , PDB link 1KIE , PDB link 1MAS , PDB link 1R4F , PDB link 2C40 , PDB link 2FF1 , PDB link 2FF2 , and PDB link 2MAS . References reflist 1 cite journal author HEPPEL LA, HILMOE RJ year 1952 title Phosphorolysis and hydrolysis of purine ribosides by enzymes from yeast ... journal Biochem. J. volume 59 pages 386&ndash 391 cite journal author Parkin DW year 1996 title Purine ... journal author S year 2001 title Purification, characterization, and gene cloning of purine nucleosidase ... substrate interactions in the purine specific nucleoside hydrolase from Trypanosoma vivax journal ... more details
transcriptional units that together encode 17 genes that are mostly involved in active transport purine transport and purinemetabolismpurine nucleotide synthesis . ref name Mandal As some members ... 415 pmid 15549109 doi 10.1038 nature03037 issue 7015 ref Purine riboswitch es are a class of riboswitches ... pmc 1999398 ref , this family are termed purine riboswitches. The purine riboswitch is the only ... reflist 1 External links Rfam id RF00167 name Purine riboswitch http www.rcsb.org pdb explore ... more details
Purine analogues are antimetabolite s which mimic the structure of metabolic purine s. Examples Examples include Azathioprine is the main immunosuppressive cytotoxic substance. It is widely used in transplantations to control rejection reactions. It is nonenzymatically cleaved to 6 mercaptopurine that acts as a purine analogue and an inhibitor of DNA synthesis. By preventing the clonal expansion of lymphocytes in the induction phase of the immune response, it affects both the cell immunity cell and the humoral immunity . It also successfully suppresses autoimmunity . Mercaptopurine Thioguanine is used to treat acute leukemias and remissions in acute granulocytic leukemias Fludarabine inhibits function of multiple DNA polymerase s, DNA primase , DNA ligase I and is S phase specific since these enzymes are highly active during DNA replication . Pentostatin and cladribine are adenosine analogs which are primarily used to treat hairy cell leukemia . gallery Image Purine.png Purine Image Mercaptopurine.svg Mercaptopurine Image Tioguanine.svg Tioguanine Image Fludarabine phosphate.svg Fludarabine gallery Chemotherapeutic agents Antivirals Nucleobases, nucleosides, and nucleotides Category Purines Category Antimetabolites biochem stub sr Analogni purini zh ... more details
Lipid metabolism refers to the processes that involve the creation and degradation of lipid s. The types of lipids involved include Bile salt s Cholesterol s Eicosanoid s Glycolipid s Ketone bodies Fatty acids see also fatty acid metabolism Phospholipid s Sphingolipid s Steroid see also steroidogenesis Triacylglycerol s fats see also lipolysis and lipogenesis External links MeshName Lipid metabolism Ophardt, Charles E. 2003 http www.elmhurst.edu chm vchembook 622overview.html Lipid Catabolism Summary . Virtual Chembook. Elmhurst College. King, Michael W. http themedicalbiochemistrypage.org lipid synthesis.html Fatty Acid, Omega 3 and Omega 6 Fatty Acid, Triglyceride, and Phospholipid Synthesis and Metabolism . The Medical Biochemistry Page. Metabolism Lipid metabolism enzymes Eicosanoid metabolism enzymes Glycolipid sphingolipid metabolism enzymes Ketone and cholesterol metabolism enzymes Category Lipids Category Metabolism biochemistry stub ... more details
Image Streptomycin structure.png thumb 120px right Streptomycin , an important antibiotic drug produced by Streptomyces bacteria Secondary metabolism also called special metabolism is a term for pathways and small molecule products of metabolism that are not absolutely required for the survival of the organism . Examples of the products include antibiotics and pigment s. To distinguish non secondary ordinary metabolism, the term basic metabolism is sometimes used. Secondary metabolite s are produced by microbe s, plants, fungi and animals, but not by all of them. Important secondary metabolites main Secondary metabolite Antibiotic s, such as streptomycin and penicillin Pigment s, such as delphinidin References Unreferenced date June 2008 External links http www.biologie.uni hamburg.de b online e20 20.htm Secondary metabolism in plants Category Metabolism biochemistry stub fi Sekundaarimetabolia es Metabolito secundario ... more details
Merge Antoni K pi ski date December 2009 Information metabolism is a psychology psychological theory of human social interaction s based on information processing Citation needed date February 2007 . It was developed in Eastern Europe by Antoni K pi ski who criticized works of Carl Jung . In the late 1970s, Lithuania n psychologist Au ra Augustinavi i t created socionics , a personality typology based on the typology of Carl Jung and the theory of information metabolism of Antoni K pi ski , a Poland Polish psychiatrist interested in schizophrenia . According to Augustinavi i t , humans can be classified in terms of types of information processing , or information metabolism . Psychological features such as attention, interests, memory and motivation are components of this theory of information metabolism. This theory of information metabolism is built upon an analogy to biological metabolism . According to this analogy, information that arrives as signals from outside an organism are available for information metabolism just as food is available for energy metabolism. The brain is the key information metabolism system. The brain and information metabolism deal with a two way flow of signals metabolism of input signals results in the production of output. Just as enzymes can constructively interact only with structurally specific substrate molecules, brains can only constructively ... psychological components of information metabolism, Augustinavi i t created a mathematical theory ... s information metabolism model theory. Proceedings of the Sixth National Conference on Application ... Lekarskich. Kokoszka, A. 1993 Information metabolism as a model of consciousness. International ..., A. 1999 Information metabolism as a model of human experiences. International Journal of Neuroscience , Vol. 97 Issue 3 4, pp. 169 10. Kokoszka, A. 2001 Mental organization according to the metabolism ... 113 118. Struzik, T. 1987 Kepinski s information metabolism. Carnot s principle and reformation ... more details
Urban Metabolism is a scientific modelling model to facilitate the description and analysis of the flows of the materials and energy within cities, such as undertaken in a Material flow analysis of a city. First used as an exploration and comparison modeling tool by Abel Wolman in The metabolism of Cities . The use of the Urban Metabolism model offers benefits to studies of the sustainability of cities by providing a unified or holistic viewpoint to encompass all of the activities of a city in a single model. Uses The concept of urban metabolism has been used to describe the resource consumption and waste generation of the cities for some time see for example, Wolman, 1965 . Historically, first suggestions that quasi organism analogies may help in understanding cities including references to metabolism were made by the Chicago school of urban sociology Burgess and others . Presently, the great advocate and populariser of the term has been the British educator and author Herbert Girardet . More recently the metabolism frame of reference has been used in the reporting of environmental information in Australia and it has been suggested that it can be used to define the sustainability of a city within the ecosystems capacity to support it. A strong theme in present literature on urban sustainability is that of the need to view the urban system as a whole if we are to best understand and solve the complex problems. Uses of the model are however not restricted to strictly functional ... infrastructure and citizens ref Gandy, M. 2004 . Rethinking urban metabolism Water, space and the modern ... the metabolism model. Landscape and Urban Planning, 44, 219 226. State of the Environment Advisory Council. 1996 . State of the Environment Report 1996 CSIRO. Wolman, A. 1965 . The metabolism of cities ... Understanding Urban Metabolism Encyclopedia of the Earth article http www.eoearth.org article Urban metabolism Urban Metabolism Category Impact assessment Category Industrial ecology ... more details
Protein metabolism denotes the various biochemistry biochemical processes responsible for the synthesis of protein synthesis proteins and amino acid synthesis amino acids , and the breakdown of proteins and other large molecules, too by protein catabolism catabolism . Protein synthesis Main article Protein biosynthesis . Protein biosynthesis relies on four processes amino acid synthesis RNA synthesis Transcription genetics transcription Translation genetics translation Protein anabolism is the process by which protein are formed from amino acids aka anabolic amino acid synthesis . Protein catabolism is the process by which proteins are broken down to their amino acids. This is also called proteolysis . Metabolism DEFAULTSORT Protein Metabolism Category MetabolismMetabolism stub cs Metabolismus b lkovin ... more details
Industrial metabolism was first proposed by Robert Ayres scientist Robert Ayres as the whole integrated collection of physical processes that convert raw materials and energy, plus labour, into finished products and wastes... ref Ayres, R.U., 1994. Industrial metabolism Theory and policy. In Ayres, R.U., Simonis, U.K. Eds. , http www.unu.edu unupress unupbooks 80841e 80841E00.htm Industrial Metabolism Restructuring for Sustainable Development . United Nations University Press, Tokyo, pp. 3 20. ref The goal is to study the flow of materials through society in order to better understand the sources and causes of emissions, along with the effects of the linkages in our socio technological systems. ref S. Anderberg 1998 , Industrial metabolism and linkages between economics, ethics, and the environment , Ecological Economics , 24, pp 311 320 ref See also Portal Sustainable development Anthropogenic metabolism Energy accounting Industrial ecology Material flow accounting Material flow analysis Books http www.unu.edu unupress unupbooks 80841e 80841E00.htm Industrial Metabolism Restructuring for Sustainable Development Sources Reflist Industrial Ecology Category Industrial ecology Category Sustainability Sustainability stub ... more details
Unreferenced date December 2009 Cysteine metabolism refers to the biological pathways that consume or create cysteine . The pathways of different amino acids and other metabolites interweave and overlap to creating complex systems. Human cysteine metabolism In human cysteine metabolism, L cysteine is consumed in several ways as shown below. L cysteine is also consumed in methionine and glutathione metabolism as well as pantothenate CoA biosynthesis. class wikitable style text align center L cysteine consumption pathways enzyme product cysteine dioxygenase 3 sulfino L alanine or cysteine sulfinic acid amino acid racemase D cysteine cysteine lyase L cysteate cysteine tRNA ligase L cysteinyl tRNA sup Cys sup cystine reductase L cystine cysteine transaminase 3 mercapto pyruvate L cysteine is the product of several processes as well. In addition to the reactions below, L cysteine is also a product of glycine , serine , and threonine metabolism. class wikitable style text align center L cysteine production pathways starting chemical enzyme O acetyl L serine cysteine synthase L cystine glutathione cystine transhydrogenase pyruvate cystathionine lyase 3 mercapto pyruvate cysteine transaminase See also D cysteine desulfhydrase Sulphur metabolism DEFAULTSORT Cysteine Metabolism Category Sulfur metabolism Category Sulfur amino acids ja ... more details
Unreferenced date November 2006 Flux , or metabolic flux is the rate of turnover of molecules through a metabolic pathway . Flux is regulated by the enzymes involved in a pathway. Within cell biology cell s, regulation of flux is vital for all metabolic pathways to regulate the metabolic pathway s activity under different conditions. Flux is therefore of great interest in metabolic network modelling , where it is analysed via flux balance analysis . DEFAULTSORT Flux Biochemistry Category Metabolism Metabolism stub Biochem stub ... more details
Anthropogenic metabolism is a term used in material flow analysis , substance flow analysis and waste management . It includes blockquote not only the physiological metabolism but also includes the thousands of goods and substances necessary to sustain modern life. Anthropogenic stands for man made. The anthroposphere is the Sphere disambiguation sphere in which human activities take place, sometimes called technosphere or biosphere . Today, the most important man made material flows are due to activities such as cleaning, transporting, residing and communicating. These activities were of little metabolic significance in prehistoric times. ref Brunner Paul H. and Rechberger H. 2002 http www.iwa.tuwien.ac.at htmd2264 publikat aws publikationen Publikationen 2001 Anthropogenic 20Metabolism 20and 20Environmental 20Legacies.pdf Anthropogenic Metabolism and Environmental Legacies in Encyclopedia of Global Environmental Change ISBN 0 471 97796 9 ref blockquote See also Industrial metabolism References references Further reading Baccini, Peter and Brunner, Paul H., Metabolism of the Anthroposphere, Springer, 1991, Heidelberg, Berlin, New York, ISBN 978 3 540 53778 6 Category Waste management concepts Category Industrial ecology ... more details
Infobox Journal title Cell Metabolism discipline Physiology Molecular Biology publisher Cell Press country United States USA frequency Monthly history 2005 to present openaccess After 12 months website http www.cellmetabolism.org ISSN 1550 4131 Cell Metabolism , launched in January 2005, is one of the newer titles in the Cell Press family. The journal focuses on physiology, with an emphasis on understanding the molecular basis of how the body self regulates in the face of change, and how disturbances in these balances can lead to disease. Advances in these fields take on a special importance given the increasing prevalence of obesity, diabetes, hypertension, and related maladies metabolic diseases in the developed world. Created in response to what top scientists saw as a growing need for a specialized journal in this field, Cell Metabolism is run by in house editorial and production teams with full responsibility for selecting and preparing content for publication. Further Information Journal published on a monthly basis The 2007 Thomson Reuters Impact Factor for Cell Metabolism is 17.148 External links http www.cellmetabolism.org www.CellMetabolism.org Reed Elsevier Category Biology journals Category Cell Press academic journals Category Publications established in 2005 fr Cell Metabolism ... more details
Drug metabolism is the biochemical modification of pharmaceutical drug pharmaceutical substances by living organism s, usually through specialized Enzyme enzymatic systems. This is a form of xenobiotic metabolism . Drug metabolism often converts Hydrophobic lipophilic chemical compound s into more readily Excretion excreted Hydrophilicity polar products. Its rate is an important determinant of the duration and intensity of the pharmacological action of drugs. Medication Drug metabolism can result ... and oxygen. The classes of pharmaceutical drugs that utilize this method for their metabolism include phenothiazine s, Paracetamol Metabolism paracetamol , and steroids. If the metabolites of phase ... transforms , which are comparatively innocuous. But Phase I metabolism converts acetonitrile ... are toxic. Phase I metabolism of drug candidates can be simulated in the laboratory using non ... organ of drug metabolism, although every biological tissue has some ability to metabolize drugs. Factors responsible for the liver s contribution to drug metabolism include that it is a large ..., it becomes well metabolized and is said to show the first pass effect . Other sites of drug metabolism ... major enzymes and pathways are involved in drug metabolism, and can be divided into Phase I and Phase ... s Mercapturic acid biosynthesis Factors that affect drug metabolism The duration and intensity ... in this regard. In general, anything that increases the rate of metabolism e.g. , Enzyme induction ... toxicity. Various physiological and pathological factors can also affect drug metabolism. Physiological factors that can influence drug metabolism include age, individual variation e.g. , pharmacogenetics .... Pathological factors can also influence drug metabolism, including liver , kidney , or heart diseases. In silico modelling and simulation methods allow drug metabolism to be predicted in virtual patient ... Rostami Hodjegan Geoffrey Tucker year 2007 title Simulation and prediction of in vivo drug metabolism ... more details
Sulfur metabolism is vital for all living organism s as it is a constituent of a number of essential organic molecules like cysteine , methionine , coenzyme A , and iron sulfur cluster s. These compounds are involved in a number of essential cellular processes such as protein biosynthesis or the transfer of electrons and acyl group s. Sulfur, therefore, is an essential component of all living cells. The importance of sulfur is well represented by the sulfhydryl thiol functional group, lying at the centre of many chemical reactions in biology. Thiol based reactions have diverse biological functions thiols in thioredoxin s provide reductive power for the synthesis of biological molecules thiols in coenzyme A facilitate the oxidation of pyruvic acid pyruvate and fatty acid s to generate energy for living cells and thiols in glutathione and mycothiol are involved in detoxifying hazardous molecules, as well as maintaining the redox balance of living cells. Additionally, sulfur containing molecules function as messengers in intracellular and intra species communication. Sulfur is also a constituent of many other biomolecules like cysteine, methionine, biotin , lipoic acid , molybdopterin ... 0 ref Mycobacterium Sulfur metabolism in mycobacteria plays a role in the pathogenesis of the insidious ... Sulphur Metabolism in Mycobacteria title Mycobacterium Genomics and Molecular Biology publisher ..., their biosynthesis is of great industrial interest. Therefore, the metabolism of sulfur in Corynebacterium ..., the regulation of sulfur metabolism has been analyzed on the transcriptional as well as on the enzymatic ... from amino acid metabolism by the enzyme cystalysin is cytotoxic and may be considered one of the virulence ... reactions. Sulfur metabolism is the subject of much research in archaea, including both sulfur ... of sulfur amino acids metabolism and some species have alternative pathways of cysteine ... Category Metabolism Category Sulfur metabolism Category Sulfur ... more details
Image CYP2C9 1OG2.png 230px thumb Cytochrome P450 oxidase s are important enzymes in xenobiotic metabolism. Xenobiotic metabolism from the Greek xenos Greek xenos stranger and biotic related to living ..., in some cases, the intermediates in xenobiotic metabolism can themselves be the cause of toxic effects. Xenobiotic metabolism is divided into three phases. In phase I, enzymes such as cytochrome P450 .... The reactions in these pathways are of particular interest in medicine as part of drug metabolism ... in xenobiotic metabolism are a common reason for hazardous drug interaction s. These pathways are also important in environmental science , with the xenobiotic metabolism of microorganism s determining ... in the environment. The enzymes of xenobiotic metabolism, particularly the glutathione S transferase ... mixture of chemicals involved in normal metabolism . The solution that has evolved to address this problem .... The detoxification of the reactive by products of normal metabolism cannot be achieved by the systems ... Phases I and II of the metabolism of a lipophilic xenobiotic. The metabolism of xenobiotics is often ... reactions related to metabolism and chemical toxicity journal Chem. Res. Toxicol. volume 14 issue 6 ... can be excreted from cells in phase III of their metabolism, with the anionic groups acting as affinity ... enzymes are usually required for the metabolism of each group of endogenous toxins. Examples of these specific ... metabolism a look from the past to the future journal Drug Metab. Dispos. volume 29 issue 6 pages 779 ... role in xenobiotic metabolism in 1963. ref cite journal author Estabrook RW title A passion for P450s ... See also Drug design Drug metabolism Microbial biodegradation Biodegradation Bioremediation Antioxidant ... and drug metabolism databases ref cite journal author James Smith Viktor Stein year 2009 title SPORCalc ... Default.aspx Drug metabolism database http www.icgeb.org p450srv Directory of P450 ... Database Drug metabolism http www.ionsource.com tutorial metabolism drug metabolism.htm Small Molecule ... more details
Refimprove date November 2008 Carbohydrate metabolism denotes the various biochemistry biochemical processes responsible for the anabolism formation , catabolism breakdown and interconversion of carbohydrates in life living organism s. The most important carbohydrate is glucose , a simple sugar monosaccharide that is metabolized by nearly all known organisms. Glucose and other carbohydrates are part of a wide variety of metabolic pathways across species plants synthesize carbohydrates from atmospheric gases by photosynthesis storing the absorbed energy internally, often in the form of starch or lipid s. Plant components are eaten by animals and fungi , and used as fuel for cellular respiration . Oxidation of one gram of carbohydrate yields approximately 4 kcal of Chemical energy energy and from lipids about 9 kcal. Energy obtained from metabolism e.g. oxidation of glucose is usually stored temporarily within cells in the form of adenosine triphosphate ATP . Organisms capable of aerobic respiration metabolize glucose and oxygen to release energy with carbon dioxide and water as byproducts. Carbohydrates are a superior short term fuel for organisms because they are simpler to metabolize ... to carbohydrate. Glycolysis the oxidation metabolism of glucose molecules to obtain adenosine ... major aspects of metabolism via insulin. In humans, insulin is made by beta cells in the pancreas .... Human diseases of carbohydrate metabolism Diabetes mellitus Lactose intolerance Fructose intolerance ... metabolism http www.articlesbook.com metabolizing carbohydrates Metabolizing Carbohydrates http diabetescorner.blogspot.com 2007 09 glucose metabolism.html Glucose Metabolism and Diabetes http www.bbc.co.uk ... Humans Glucoregulation http www.medbio.info Horn Sugars4Kids Sugar4Kids Carbohydrate metabolism Glycogenolysis Gluconeogenesis Fructose and galactose metabolism Glycosaminoglycan metabolism enzymes Glycoprotein metabolism enzymes DEFAULTSORT Carbohydrate Metabolism Category Metabolism da Kulhydratstofskifte ... more details
Metal metabolism refers to the metabolic role of certain metals, such as iron and zinc . Inorganic elements play critical roles in metabolism some are abundant e.g. sodium and potassium while others function at minute concentrations. About 99 of mammals mass are the elements carbon , nitrogen , calcium , sodium , chlorine , potassium , hydrogen , phosphorus , oxygen and sulfur . ref name Heymsfield cite journal author Heymsfield S, Waki M, Kehayias J, Lichtman S, Dilmanian F, Kamen Y, Wang J, Pierson R title Chemical and elemental analysis of humans in vivo using improved body composition models journal Am J Physiol volume 261 issue 2 Pt 1 pages E190 8 year 1991 pmid 1872381 ref The organic compound s proteins, lipids and carbohydrates contain the majority of the carbon and nitrogen and most of the oxygen and hydrogen is present as water. ref name Heymsfield Electrolytes The abundant inorganic elements act as ion ic electrolyte s. The most important ions are sodium , potassium , calcium , magnesium , chloride , phosphate , and the organic ion bicarbonate . The maintenance of precise ion gradient gradients across cell membrane s maintains osmotic pressure and pH . ref cite journal author Sychrov H title Yeast as a model organism to study transport and homeostasis of alkali metal cations url http www.biomed.cas.cz physiolres pdf 53 20Suppl 201 53 S91.pdf format PDF journal Physiol Res volume 53 Suppl 1 issue pages S91 8 year 2004 pmid 15119939 ref Ions are also critical for nerve s and muscle s, as action potential s in these tissues are produced by the exchange of electrolytes between the extracellular fluid and the cytosol . ref cite journal author Levitan I title Modulation ... author Dunn L, Rahmanto Y, Richardson D title Iron uptake and metabolism in the new millennium journal ... ref See also Physiology bioinorganic chemistry Cofactor biochemistry cofactor Human iron metabolism iron metabolism References reflist 2 Metabolism Metal metabolism Category Metabolism ... more details
metabolism have revealed that limiting the speed of this step may be beneficial to the efficiency ... NADPH during metabolism, limiting this step will help to correct the already evident imbalance ... laboratory strains do not always reflect their metabolism abilities on raw xylose products in nature ... the efficiency of the D xylose metabolism pathway. References reflist 2 Carbohydrate metabolism ... more details
2007 Pharmacotherapy Modulating the pyrimidine metabolism pharmacologically has therapeutical ... of London MetabolismMap Protein metabolism Nucleotide metabolism Category Pyrimidines Category metabolism ca S ntesi de les pirimidines sr Biosinteza pirimidina ... more details
metabolism Image Gycolpathway.gif Glycolysis Pathway Ethanol to acetaldehyde Ethanol is oxidized ... metabolism. Two major liver isoforms of this enzyme, cytosolic and mitochondrial, can be distinguished ... reflist 2 Metabolism Category Metabolism sv Alkoholmetabolisering ... more details
Encyclopedia
top
