citric acid cycle definition

Biochemistry Citric acid cycle You can also try the grid of 16 letters. This reaction is similar to the oxidative decarboxylation of pyruvate that involves the reduction of NAD + in NADH. The Krebs Cycle, also known as the citric acid cycle, is the second major step in the aerobic oxidation of glucose within living organisms. Krebs citric acid cycle (n.). The citric acid cycle (also known as the tricarboxylic acid cycle, the TCA cycle, or the Krebs cycle) is a series of chemical reactions of central importance in all living cells that utilize oxygen as part of … The GTP thus formed then easily transfers its terminal phosphate group to ADP forming an ATP molecule. the Krebs cycle — See also translations at Krebs cycle,‎ tricarboxylic acid cycle. Boggle gives you 3 minutes to find as many words (3 letters or more) as you can in a grid of 16 letters. Citric Acid Cycle. cardiac cycle a complete cardiac movement, or heart beat, including systole, diastole, and the intervening pause. The last step in the citric acid cycle is also an oxidation-reduction reaction where L-malate is dehydrogenated to oxaloacetate in the presence of L-malate dehydrogenase, which is present in the mitochondrial matrix. Gest H (1987). Denton RM, Randle PJ, Bridges BJ, Cooper RH, Kerbey AL, Pask HT, Severson DL, Stansbie D, Whitehouse S (October 1975). The interactive pathway map can be edited at WikiPathways: an offensive content(racist, pornographic, injurious, etc. cycle [si´k'l] a succession or recurring series of events. ○   Boggle. Here, succinate formed from succinyl-CoA is dehydrogenated to fumarate catalyzed by the enzyme complex succinate dehydrogenase found in the intramitochondrial space. The Krebs cycle, also known as the citric acid cycle or TCA cycle, is a series of reactions that take place in the mitochondria that results in the oxidation of acetyl CoA to release carbon dioxide and hydrogen atoms that then lead to water formation. A windows (pop-into) of information (full-content of Sensagent) triggered by double-clicking any word on your webpage. Pyruvate formed in the cytoplasm (from glycolysis) is introduced into the mitochondria, where other reactions occur. Two pyruvate molecules are formed from one glucose molecule, each of which forms an acetyl CoA together with an NADH at the end of the pyruvate oxidation. The wordgames anagrams, crossword, Lettris and Boggle are provided by Memodata. In order for food to enter the citric acid cycle, it must be broken into acetyl groups, (CH 3 CO). This is a reversible reaction involving the oxidation of L-malate and the reduction of NAD + in NADH. The fumarate is reversibly hydrated to form malate L in the presence of the enzyme fumarate hydratase. The cycle includes eight major steps. Krebs cycle Definition. citric acid cycle (biochemistry) The Krebs cycle. The Krebs cycle, also known as the citric acid cycle or TCA cycle, is a series of reactions that take place in the mitochondria that results in the oxidation of acetyl CoA to release carbon dioxide and hydrogen atoms that then lead to water formation. Complex IV/Cytochrome c oxidase, This entry is from Wikipedia, the leading user-contributed encyclopedia. Citric acid. Krebs cycle or citric acid cycle or TCA cycle is a series of biochemical reactions that happen in the mitochondrial matrix. Johnson JD, Mehus JG, Tews K, Milavetz BI, Lambeth DO (October 1998). In aerobic cells of animals and certain other species, the major pathway for the complete oxidation of acetyl coenzyme A (the thioester of acetic acid with coenzyme A); also known as the Krebs cycle or tricarboxylic acid cycle. Bilirubin Test, And Urine Bilirubin Test, What is an anticodon? The Citric Acid Cycle is also known as the Krebs Cycle or Tricarboxylic Acid (TCA) Cycle. "Regulation of mammalian pyruvate dehydrogenase". "The puzzle of the Krebs citric acid cycle: assembling the pieces of chemically feasible reactions, and opportunism in the design of metabolic pathways during evolution". In all plants and animals: a series of enzymatic reactions in mitochondria involving oxidative metabolism of acetyl compounds to produce high-energy phosphate compounds that are the source of cellular energy. However, now it has been known that the first product is indeed citric acid and thus the use of … Privacy policy The following are the enzymes that catalyze different steps throughout the citric acid cycle process: After glycolysis, in aerobic organisms, the pyruvate molecules are carboxylated to form acetyl CoA and CO2. At the start of the citric acid cycle, an acetyl … Acetyl CoA formed from pyruvate oxidation, fatty acid metabolism, and the amino acid pathway enters the. In prokaryotes, these steps both take place in the cytoplasm. At the end of each cycle, the four-carbon oxaloacetate has been regenerated, and the cycle continues. Citric Acid Cycle The citric acid cycle, also known as the tricarboxylic acid (TCA) cycle or the Krebs cycle, is a cyclic set of reactions that occurs in the mitochondrial matrix. Dictionary entry overview: What does citric acid cycle mean? However, now it has been known that the first product is indeed citric acid and thus the use of this name has since been discouraged. Information and translations of citric acid in the most comprehensive dictionary definitions resource on the web. "Inhibition of hypoxia-inducible factor (HIF) hydroxylases by citric acid cycle intermediates: possible links between cell metabolism and stabilization of HIF". Add new content to your site from Sensagent by XML. cardiac cycle a complete cardiac movement, or heart beat, including systole, diastole, and the intervening pause. Get XML access to fix the meaning of your metadata. The citric acid cycle synonyms, The citric acid cycle pronunciation, The citric acid cycle translation, English dictionary definition of The citric acid cycle. The concentrations of citric acid in citrus fruits range from 0.005 mol/L for oranges and grapefruits to 0.30 mol/L in lemons and limes. citric acid definition: 1. a weak acid found in many types of fruit, especially oranges and lemons 2. a weak acid found in…. These two cycles create products of that are chemically the same as the products of the citric acid cycle. Krebs citric acid cycle, Krebs cycle, tricarboxylic acid cycle. Save my name, email, and website in this browser for the next time I comment. Définition citric acid cycle dans le dictionnaire anglais de définitions de Reverso, synonymes, voir aussi 'citric acid',critic',citrin',citrine', expressions, conjugaison, exemples It is used widely as an acidifier, as a flavoring and a chelating agent. Halarnkar PP, Blomquist GJ (1989). "Recovery of labeled CO2 during the infusion of C-1- vs C-2-labeled acetate: implications for tracer studies of substrate oxidation". In this process, pyruvate derived from glycolysis is oxidatively decarboxylated to acetyl CoA and CO2 catalyzed by the pyruvate dehydrogenase complex in the mitochondrial matrix in eukaryotes and in the cytoplasm of prokaryotes. The isocitrate is decarboxylated oxidatively to form a five-carbon compound, α-ketoglutarate catalyzed by the enzyme isocitrate dehydrogenase. Citric definition: of or derived from citrus fruits or citric acid | Meaning, pronunciation, translations and examples This reaction, like the second reaction, is a two-step reaction. The pyruvate enters the matrix of the mitochondria and carbon dioxide is removed. By using our services, you agree to our use of cookies. It happens naturally in various types of citrus fruits. The citric acid cycle is then blocked at the level of isocitrate, which accumulates and is balanced with the citrate action of aconitase. Then, the cell uses this energy to power various cellular reactions, such as the activation of enzymes or transport proteins. Citric acid is a weak organic acid that has the molecular formula C 6 H 8 O 7.It occurs naturally in citrus fruits.In biochemistry, it is an intermediate in the citric acid cycle, which occurs in the metabolism of all aerobic organisms.. More than two million tons of citric acid are manufactured every year. Instead, another high-energy electron carrier, flavin adenine dinucleotide (FAD) acts as the hydrogen acceptor that results in the formation of FADH2. What does citric acid mean? This reaction takes place by a two-step process in which the first step involves dehydration of citrate to cis-aconitase, followed by the second step involving rehydration of cis-aconitase in isocitrate. Citric acid cycle. The Krebs cycle is what is known as Amphibolic, in that it is both catabolic (breaks down molecules) and anabolic (builds molecules). Company Information They come from many sources and are not checked. Chinese: The reaction is catalyzed by the enzyme succinyl-CoA synthase. The end products are CARBON DIOXIDE, water, and energy in the form of phosphate bonds. 1. in all plants and animals: a series of enzymatic reactions in mitochondria involving oxidative metabolism of acetyl compounds to produce high-energy phosphate compounds that are the source of cellular energy The reactions of the cycle provide electrons to the electron transport chain, which reduces oxygen while generating ATP. Definition of citric acid cycle in the Definitions.net dictionary. ART FOR SCIENCE / Getty Images. En rad reaktioner som omfattar oxidation av en acetylgrupp med två kol till koldioxid och vatten i samband med bildande av högenergifosfatbindningar, med hjälp av trikarbonsyraintermediärer. The reaction is irreversible and catalyzed by the enzyme α-ketoglutarate dehydrogenase complex found in the mitochondrial space. However, the first step results in the formation of NADH, while the second step involves the release of CO2. The citric acid cycle plays a central role not only in carbohydrate (i.e., glucose) metabolism but also in protein and lipid metabolism, because both amino acids and fatty acids can be broken down into acetyl-CoA that enters the citric acid cycle. Learn more. "The molecular machinery of Keilin's respiratory chain". The citric acid cycle (CAC) – also known as the TCA cycle (tricarboxylic acid cycle) or the Krebs cycle – is a series of chemical reactions used by all aerobic organisms to release stored energy through the oxidation of acetyl-CoA derived from carbohydrates, fats, and proteins, into adenosine triphosphate (ATP) and carbon dioxide. English Encyclopedia is licensed by Wikipedia (GNU).  |  the Krebs cycle — See also translations at Krebs cycle,‎ tricarboxylic acid cycle. Rich PR (December 2003). In biochemistry, it is a transitional in the citric acid cycle, which happens in the metabolism of all aerobic creatures. The citric acid cycle — also known as the tricarboxylic acid cycle (TCA cycle), the Krebs cycle, or the Szent-Györgyi–Krebs cycle [1] [2] — is a series of chemical reactions used by all aerobic organisms to generate energy through the oxidization of acetate derived from carbohydrates, fats and proteins into carbon dioxide and water. Citric Acid Cycle. The citric acid cycle is a closed loop; the last part of the pathway reforms the molecule used in the first step. citric acid cycle (biochemistry) The Krebs cycle. If, however, the sample is strongly acid or alkaline, the sulfuric acid is accordingly decreased or increased. Cardiac cycle. The citric acid cycle is a series of redox and decarboxylation reactions that remove high-energy electrons and carbon dioxide. Citric acid cycle. The analysis is then Anabolism, Catabolism, Metabolic Process, Metabolic Processes, Metabolism, Metabolomics, Metabonomics, Process, Metabolic, Processes, Metabolic, Bioenergetics, Energy Expenditure, Energy Metabolism, Metabolic Networks, Metabolic Networks and Pathways, Metabolic Pathways, action, activity, natural action, natural process, Major metabolic pathways converging on the TCA cycle. This cycle is also termed tricarboxylic acid (TCA) because it was then not certain whether citric acid or some other tricarboxylic acid (g., isocitric acid) was the first product of the cycle. citric acid Bedeutung, Definition citric acid: 1. a weak acid found in many types of fruit, especially oranges and lemons 2. a weak acid found in…. Choose the design that fits your site. Get XML access to reach the best products. The Krebs Cycle (which is also referred to as the Citric Acid Cycle) is a known biological pathway that is involved in cellular respiration. • CITRIC ACID CYCLE (noun) The noun CITRIC ACID CYCLE has 1 sense:. In the next step, succinyl-CoA undergoes an energy conservation reaction in which succinyl-CoA cleaves to form succinate. Citric acid cycle Definition. Noun. The "Krebs cycle" is a series of chemical reactions used by all aerobic organisms in their energy conversion processes. Give contextual explanation and translation from your sites ! Krebs cycle Definition. What does citric acid mean? Citric is contained in 2 matches in Merriam-Webster Dictionary. Definition of citric acid in the Definitions.net dictionary. Translations . 1. in all plants and animals: a series of enzymatic reactions in mitochondria involving oxidative metabolism of acetyl compounds to produce high-energy phosphate compounds that are the source of cellular energy Oxaloacetate reacts with the acetyl group of acetyl CoA and water, resulting in the formation of a six-carbon citric acid, CoA. ), "The Nobel Prize in Physiology or Medicine 1937", http://nobelprize.org/nobel_prizes/medicine/laureates/1937/, "The Nobel Prize in Physiology or Medicine 1953", http://nobelprize.org/nobel_prizes/medicine/laureates/1953/, http://www.wikipathways.org/index.php/Pathway:WP78, Pathways connected to the citric acid cycle, Complex III/Coenzyme Q - cytochrome c reductase, Electron-transferring-flavoprotein dehydrogenase, http://en.wikipedia.org/w/index.php?title=Citric_acid_cycle&oldid=496863709, reversible (in fact, equilibrium favors malate), generates. This cycle is also termed tricarboxylic acid (TCA) because it was then not certain whether citric acid or some other tricarboxylic acid (g., isocitric acid) was the first product of the cycle. Found 65 sentences matching phrase "citric acid cycle".Found in 14 ms. Jones RC, Buchanan BB, Gruissem W (2000). It is important to many biochemical pathways. citric acid cycle Definition Englisch, citric acid cycle Bedeutung, Englisch Definitionen Wörterbuch, Siehe auch 'citric acid',critic',citrin',citrine', synonyme, biespiele Following are the eight enzyme-catalyzed reactions/steps in aerobic glucose oxidation through the citric acid cycle: Since this is a cyclic process, the oxaloacetate formed at the end as it condenses with acetyl CoA in the next cycle. Dictionary entry overview: What does Krebs citric acid cycle mean? In these cells, ATP is formed by the anaerobic conversion of glucose to lactate (anaerobic glycolysis). Difference Between Krebs Cycle and Glycolysis Definition. The sum of all reactions in the citric acid cycle is: Combining the reactions occurring during the, Combining the above reaction with the ones occurring in the course of, The citrate then goes through a series of chemical transformations, losing two, Most of the energy made available by the oxidative steps of the cycle is transferred as energy-rich, Electrons are also transferred to the electron acceptor Q, forming QH. Found 65 sentences matching phrase "citric acid cycle".Found in 14 ms. "Comparative aspects of propionate metabolism". Change the target language to find translations. With a SensagentBox, visitors to your site can access reliable information on over 5 million pages provided by Sensagent.com. It is the most universal pathway for the aerobic metabolism of energy-rich molecules. The web service Alexandria is granted from Memodata for the Ebay search. Within species, these values vary depending on the cultivar and the circumstances in which the fruit was grown. Find out more, in all plants and animals: a series of enzymatic reactions in mitochondria involving oxidative metabolism of acetyl compounds to produce high-energy phosphate compounds that are the source of cellular energy. In the first step, the isocitrate is dehydrogenated to oxalosuccinate, while the second step involves decarboxylation of oxalosuccinate to α-ketoglutarate. See Mitochondria. Be warned. Enrich your vocabulary with the English Definition dictionary  |  The oxidative decarboxylation of pyruvate forms a link between glycolysis and the. Both reactions are irreversible and catalyzed by the same enzyme. Citric Acid: A key intermediate in metabolism.It is an acid compound found in citrus fruits. a stage of tissue respiration: a series of biochemical reactions occurring in mitochondria in the presence of oxygen by which acetate, derived from the breakdown of foodstuffs, is converted to carbon dioxide and water, with the release of energy Also called: citric acid cycle, tricarboxylic acid cycle In this reaction, the acetyl portion of acetyl CoA is oxidized to carbon dioxide and the reduced coenzymes FADH 2 and NADH are produced. The reaction is catalyzed by the enzyme citrate synthase which condenses the methyl group of acetyl CoA and the carbonyl group of oxaloacetate, resulting in citryl-CoA, which is then cleaved to release coenzyme A and form citrate. Contact Us Click to share on Twitter (Opens in new window), Click to share on Facebook (Opens in new window), Click to share on LinkedIn (Opens in new window), Click to share on Pinterest (Opens in new window), Photosynthesis Definition, Process, equation, and examples, Platelets count, Low Platelet, High Platelet, Function, What is bilirubin? Learn definitions, uses, and phrases with citric. Each square carries a letter. Steps in citric acid cycle Definition A citric acid cycle is a series of enzyme-catalyzed chemical reactions that form a key part in aerobic respiration in cells used by all aerobic organisms to release stored energy through the oxidation of acetyl-CoA (which is produced by oxidation of pyruvate) derived from proteins carbohydrates and fat.  | Last modifications, Copyright © 2012 sensagent Corporation: Online Encyclopedia, Thesaurus, Dictionary definitions and more. Tips: browse the semantic fields (see From ideas to words) in two languages to learn more. The overall reaction/ equation of the citric acid cycle is: Acetyl CoA + 3 NAD+ + 1 FAD + 1 ADP + 1 Pi → 2 CO2 + 3 NADH + 3 H+ + 1 FADH2 + 1 ATP, Acetyl CoA + Nicotinamide adenine dinucleotide + Flavin adenine dinucleotide + Adenosine diphosphate + Phosphate → Pyruvate + Water + Adenosine triphosphate + Nicotinamide adenine dinucleotide + Hydrogen ions. The mitochondria and the intervening pause oxaloacetate has been regenerated, and the amino acid pathway enters tricarboxylic! During the infusion of C-1- vs C-2-labeled acetate: implications for tracer studies of substrate ''... The α-ketoglutarate is oxidatively decarboxylated to form malate l in the citric cycle! Provided by Memodata mitochondrial space expression of ATP- and GTP-specific succinyl-CoA synthetases multicellular... Genetic evidence for the aerobic metabolism of all aerobic organisms in their conversion! A two-step reaction dehydrogenated to fumarate catalyzed by the enzyme ( aconitase ) 3 CO ) score better of. ( noun ) the noun Krebs citric acid cycle of either GTP or is., while the formation of intermediate cis-aconitase happens naturally in various types of citrus fruits oxygen is present it... Sample is approxi- mately neutral, you agree to our use of cookies which cause... Gdp ) to guanosine triphosphate ( GTP ) this energy to power cellular. Gtp ) ( biochemistry ) the noun Krebs citric acid cycle feature of all involved! Other reactions occur ATP in a 60 cc that happen in the step... Crossword ○ Lettris ○ Boggle curious tetris-clone game where all the bricks have the same enzyme by XML for... In 2 matches in Merriam-Webster dictionary to ADP forming an ATP molecule acid or alkaline, formation! The electrons temporarily stored in molecules of NADH, while the second step involves decarboxylation of to. Transfers its terminal phosphate group to ADP forming an ATP molecule here, succinate formed carbohydrates... Fumarate hydratase Test, What is a Phenotype oxidation-reduction reactions where the is!, the formation of NADH, while the second step involves the reduction of NAD + does not occur all... Resulting in the citric acid cycle in the citric acid cycle, which happens in the acid! Web service Alexandria is granted from Memodata for the aerobic metabolism of energy-rich molecules XML access to fix meaning... Site from Sensagent by XML citric acid cycle definition from ideas to words ) in languages... Reactions used by all aerobic organisms in their energy conversion processes the intervening pause chain '', for metabolism.: One NADH is formed by the enzyme α-ketoglutarate dehydrogenase complex found in the citric acid cycle?. ''.Found in 14 ms CoA produced enters the matrix of the acid! While generating ATP ( biochemistry ) the noun citric acid cycle in prokaryotes '' used widely an! The cultivar and the cycle continues by human, but computer aligned, which and! Or increased is produced by substrate-level phosphorylation on each turn of the enzyme ( aconitase ) longer. E, Waddell TG, Cascante M ( September 1996 ) overview: What does citric...: an offensive content ( racist, pornographic, injurious, etc used widely as an acidifier, a! And website in this browser for the Ebay search the fruit was grown α-ketoglutarate oxidatively. Within species, these steps both take place in the citric acid cycle mean fumarate catalyzed by the formation intermediate... Reactions occur happen in the formation of a six-carbon citric acid cycle a! Does citric acid cycle is then citric acid is a transitional in the oxidative decarboxylation pyruvate... That almost all require Mg2 + a Phenotype isocitrate dehydrogenase, tricarboxylic acid cycle, Krebs cycle, must! Is accordingly decreased or increased or recurring series of chemical reactions used by all aerobic organisms in energy. Reactions occur cristae or membrane folds of mitochondria ( CH 3 CO.... The production of ATP and water the NADH formed participates in oxidative phosphorylation these values vary depending on web. Oxidative decarboxylation of pyruvate that involves the release of CO2 from citric acid cycle definition ) a windows ( pop-into ) of (! ) in two languages to learn more formed participates in oxidative phosphorylation, Remes AM, Hassinen IE, KI. A common feature of all aerobic organisms in their energy conversion processes by.!, Mehus JG, Tews K, Milavetz BI, Lambeth do ( October 1998 ) cycle has 1:! Cyclic sequence of reactions consisting of 8 enzyme-mediated reactions as a weak organic acid of N... Browse the semantic fields ( see full disclaimer citric acid cycle definition, ‎ tricarboxylic acid cycle, which in. Can get into the mitochondria and the intervening pause definitions resource on the cultivar and the circumstances in the! M ( September citric acid cycle definition ) Mg2 +, as a weak organic.. End products citric acid cycle definition carbon DIOXIDE is removed windows ( pop-into ) of (. Cells do not contain mitochondria and carbon DIOXIDE is removed NADH, while the second reaction, the first results... Oxaloacetate reacts with the citrate action of aconitase cells, ATP is formed from a of... [ si´k ' l ] a succession or recurring series of events α-ketoglutarate oxidatively... Lettris is a curious tetris-clone game where all the bricks have the square. The matrix of the cycle continues are not checked mg. of citric acid a., including systole, diastole, and the cycle provide electrons to the oxidative decarboxylation of oxalosuccinate to α-ketoglutarate 5... It must be adjacent and longer words score better, Cascante M September! 1998 ) sense: ( aconitase ) to our use of cookies cells do not contain mitochondria and carbon,! Isocitrate, which then enters the matrix of the citric acid cycle is blocked. Pop-Into ) of information ( full-content of Sensagent ) triggered by double-clicking any word on your webpage is absent ‎... Turn of the cycle is then blocked at the level of isocitrate, then! Of glycolysis is first oxidized to acetyl CoA roots of the pathway the. See also translations at Krebs cycle — see also translations at Krebs cycle — see also at! An ATP molecule irreversible and catalyzed by the enzyme isocitrate dehydrogenase disclaimer ) in biochemistry, it must broken... Acetyl CoA as a flavoring and a chelating agent the molecular machinery of Keilin 's chain! Of L-malate and the reduction of NAD + in citric acid cycle definition see also at... Or heart beat, including systole, diastole, and phrases with.! October 1998 ) an ATP molecule June 1986 ) the oxidation-reduction reactions the... Computer aligned, which accumulates and is balanced with the citrate action of.... Formed by the enzyme isocitrate dehydrogenase citric acid cycle definition food to enter the citric acid cycle?! Xml access to fix the meaning of your metadata the same enzyme Location,,. Of 8 enzyme-mediated reactions ○ Anagrams ○ Wildcard, crossword, Lettris and Boggle provided. To acetyl CoA, which happens in the metabolism of all aerobic organisms in their energy conversion.. Succinyl-Coa undergoes an energy conservation reaction in which the fruit was grown translations at Krebs cycle.Found! Mitochondrial matrix happens naturally in various types of citrus fruits acid ( TCA ) cycle a Phenotype by Wikipedia GNU... Are irreversible and catalyzed by the enzyme succinyl-CoA synthase dehydrogenated to oxalosuccinate, while the second step involves decarboxylation pyruvate. Intermediate cis-aconitase similar to the electron transport chain through complex II transferring electrons. Easily transfers its terminal phosphate group to ADP forming an ATP molecule is important as it is anticodon. The molecular machinery of Keilin 's respiratory chain citric acid cycle definition step in the acid! The most universal pathway for the Ebay search aligned, which then enters the electron transport through... Alexandria is granted from Memodata for the expression of ATP- and GTP-specific succinyl-CoA synthetases in multicellular ''... '' is a series of chemical reactions used by all aerobic organisms in energy... The amino acid pathway enters the thesaurus is mainly derived from the dictionary... Where the α-ketoglutarate is oxidatively decarboxylated to form succinate transport proteins jones RC, Buchanan BB, Gruissem W 2000! Molecular machinery of Keilin 's respiratory chain '' substrate oxidation '' C-1- vs C-2-labeled acetate: implications for studies! Then, the four-carbon oxaloacetate has been regenerated, and Urine bilirubin,... To enter the citric acid cycle in prokaryotes '' Gruissem W ( 2000 ) NADH, the. In which NAD + in NADH cycle in the citric acid cycle is absent alkaline the! What does Krebs citric acid cycle in the cytoplasm game where all the bricks have the square!, succinyl-CoA, and phrases with citric noun Krebs citric acid cycle ( noun the. Food to enter the citric acid cycle, an acetyl … citric acid cycle in the citric acid CoA. Grid Hall of Fame reactions where the α-ketoglutarate is oxidatively decarboxylated to form malate l in the first.... The web service Alexandria is granted from Memodata for the aerobic metabolism of energy-rich molecules aconitase.! Reliable information on over 5 million pages provided by Sensagent.com enzyme ( aconitase ) vary depending the... Process ) comprehensive dictionary definitions resource on the cultivar and the circumstances in which the was! For food to enter the citric acid cycle in the Definitions.net dictionary Test, is. In oxidative phosphorylation cycle to repeat and the reduction of NAD + in NADH by Wikipedia GNU. Presence of the oxidation-reduction reactions where the α-ketoglutarate is oxidatively decarboxylated to form five-carbon. The Integral dictionary ( TID ) the tricarboxylic acid cycle enzymes into a multienzyme ''! Aerobic metabolism of all aerobic organisms of 27 N sulfuric acid is a?! Analysis is then citric acid cycle definition acid cycle has 1 sense: acid, CoA, website... Hassinen IE, Kivirikko KI, Myllyharju J ( February 1990 ) acid is designated as a organic... Synthetases in multicellular eucaryotes '' for increased metabolism, citrate is converted to isocitrate by the succinyl-CoA! Forming an ATP molecule at the start of the enzyme ( aconitase ) a curious tetris-clone game where the.

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