152 relations: Abiogenesis, Acetyl group, Acetyl-CoA, Aconitase, Aconitic acid, Active transport, Adenosine diphosphate, Adenosine monophosphate, Adenosine triphosphate, Adrenaline, Aerobic organism, Alanine, Albert Szent-Györgyi, Aldol condensation, Allosteric regulation, Alpha-Ketoglutaric acid, Amphibolic, Anabolism, Anaerobic organism, Anaplerotic reactions, Arginine, Asparagine, Aspartic acid, ATP citrate lyase, ATP synthase, Beta oxidation, Bile acid, Biophysical Journal, Carbohydrate, Carbon, Carbon dioxide, Carboxylation, Carboxylic acid, Catabolism, Chemical reaction, Cis–trans isomerism, Citrate synthase, Citric acid, Coenzyme A, Coenzyme Q – cytochrome c reductase, Coenzyme Q10, Cofactor (biochemistry), Condensation reaction, Convergent evolution, Cytidine triphosphate, Cytochrome, Cytosine, Cytosol, Decarboxylation, Dehydration reaction, ..., Dihydroxyacetone phosphate, DNA, Electron, Electron transport chain, Equivalent (chemistry), Essential amino acid, Fat, Fatty acid, Fatty acid metabolism, Fatty acid synthesis, Flavin adenine dinucleotide, Fructose 1,6-bisphosphate, Fumarase, Fumaric acid, Glucagon, Gluconeogenesis, Glucose, Glutamic acid, Glutamine, Glyceraldehyde 3-phosphate, Glycerol, Glycolysis, Glyoxylate cycle, Guanosine diphosphate, Guanosine triphosphate, Hans Adolf Krebs, Hemeprotein, Hemoglobin, HIF1A, Hydration reaction, Hydrolysis, Hypoxia-inducible factors, Isocitrate dehydrogenase, Isocitric acid, KEGG, Keto acid, Ketone bodies, Lactic acid, Light-independent reactions, Malate dehydrogenase, Malic acid, Metabolism, MetaCyc, Methylene bridge, Mevalonate pathway, Mitochondrial matrix, Mitochondrion, Molecule, Myoglobin, Nicotinamide adenine dinucleotide, Nobel Prize in Physiology or Medicine, Nucleoside-diphosphate kinase, Oxaloacetic acid, Oxalosuccinic acid, Oxidative phosphorylation, Oxoglutarate dehydrogenase complex, Phosphate, Phosphoenolpyruvate carboxykinase, Phosphoenolpyruvic acid, Phosphofructokinase, Porphyrin, Precursor (chemistry), Procollagen-proline dioxygenase, Proline, Propionyl-CoA, Protease, Protein, Protein catabolism, Protein complex, Purine, Pyridoxine, Pyrimidine, Pyruvate carboxylase, Pyruvate decarboxylation, Pyruvate dehydrogenase, Pyruvate dehydrogenase complex, Pyruvate dehydrogenase phosphatase, Pyruvic acid, Redox, Reducing agent, Reverse Krebs cycle, RNA, Smith College, Striated muscle tissue, Substrate-level phosphorylation, Succinate dehydrogenase, Succinic acid, Succinyl coenzyme A synthetase, Succinyl-CoA, Thymine, Transamination, Tricarboxylic acid, Triglyceride, Ubiquinol, Ubiquitin ligase, University of Sheffield, Uracil, Uridine diphosphate, Uridine monophosphate, Uridine triphosphate, Vitamin D, Water. Expand index (102 more) » « Shrink index
Abiogenesis, or informally the origin of life,Compare: Also occasionally called biopoiesis.
In organic chemistry, acetyl is a moiety, the acyl with chemical formula CH3CO.
Acetyl-CoA (acetyl coenzyme A) is a molecule that participates in many biochemical reactions in protein, carbohydrate and lipid metabolism.
Aconitase (aconitate hydratase) is an enzyme that catalyses the stereo-specific isomerization of citrate to isocitrate via cis-aconitate in the tricarboxylic acid cycle, a non-redox-active process.
Aconitic acid is an organic acid.
Active transport is the movement of molecules across a membrane from a region of their lower concentration to a region of their higher concentration—in the direction against the concentration gradient.
Adenosine diphosphate (ADP), also known as adenosine pyrophosphate (APP), is an important organic compound in metabolism and is essential to the flow of energy in living cells.
Adenosine monophosphate (AMP), also known as 5'-adenylic acid, is a nucleotide.
Adenosine triphosphate (ATP) is a complex organic chemical that participates in many processes.
Adrenaline, also known as adrenalin or epinephrine, is a hormone, neurotransmitter, and medication.
An aerobic organism or aerobe is an organism that can survive and grow in an oxygenated environment.
Alanine (symbol Ala or A) is an α-amino acid that is used in the biosynthesis of proteins.
Albert Szent-Györgyi von Nagyrápolt (nagyrápolti Szent-Györgyi Albert; September 16, 1893 – October 22, 1986) was a Hungarian biochemist who won the Nobel Prize in Physiology or Medicine in 1937.
An aldol condensation is a condensation reaction in organic chemistry in which an enol or an enolate ion reacts with a carbonyl compound to form a β-hydroxyaldehyde or β-hydroxyketone (an aldol reaction), followed by dehydration to give a conjugated enone.
In biochemistry, allosteric regulation (or allosteric control) is the regulation of an enzyme by binding an effector molecule at a site other than the enzyme's active site.
α-Ketoglutaric acid (2-oxoglutaric acid) is one of two ketone derivatives of glutaric acid.
The term amphibolic (Greek: amphi meaning “both sides”) is used to describe a biochemical pathway that involves both catabolism (A degradative phase of metabolism in which large molecule are converted into smaller and simpler molecule,which is reaction involve two type. First, hydrolysis reactions, in this reaction catabolism is the breaking apart of molecules to smaller molecules to release energy. An example of a catabolic reaction is digestion and cellular respiration where you break apart sugars and fats for energy. Hydrolysis is the way in which this is done and it is basically the reverse of a dehydration reaction. Breaking down a protein into amino acids or a triglyceride into fatty acids or a disaccharide into monosaccharides are all hydrolysis or catabolic reactions. Second, oxidation reactions involve the removal of hydrogens and electrons from an organic molecule)and anabolism(the biosynthesis phase of metabolism in which smaller simple precursor are converted to large and complex molecule of the cell. Anabolism reactant found in two type,which are dehydration synthesis reaction,in this type involve the joining of smaller molecules together to form larger, more complex molecules. This occurs through dehydration synthesis reactions. These are the most common ways smaller organic molecules can be formed into more complex ones and applies to the formation of carbs, proteins, lipids and nucleic acids. Other type called reduction reaction,which involves the adding of hydrogens and electrons to a molecule. Whenever you do that, it gains calories of energy because when you split a hydrocarbon bond, it releases energy).
Anabolism (from ἁνά, "upward" and βάλλειν, "to throw") is the set of metabolic pathways that construct molecules from smaller units.
An anaerobic organism or anaerobe is any organism that does not require oxygen for growth.
Anaplerotic reactions (from the Greek.
Arginine (symbol Arg or R) is an α-amino acid that is used in the biosynthesis of proteins.
Asparagine (symbol Asn or N), is an α-amino acid that is used in the biosynthesis of proteins.
Aspartic acid (symbol Asp or D; salts known as aspartates), is an α-amino acid that is used in the biosynthesis of proteins.
ATP citrate lyase is an enzyme that in animals represents an important step in fatty acid biosynthesis.
ATP synthase is an enzyme that creates the energy storage molecule adenosine triphosphate (ATP).
In biochemistry and metabolism, beta-oxidation is the catabolic process by which fatty acid molecules are broken down in the cytosol in prokaryotes and in the mitochondria in eukaryotes to generate acetyl-CoA, which enters the citric acid cycle, and NADH and FADH2, which are co-enzymes used in the electron transport chain.
Bile acids are steroid acids found predominantly in the bile of mammals and other vertebrates.
The Biophysical Journal is a peer-reviewed scientific journal published by Cell Press on behalf of the Biophysical Society.
A carbohydrate is a biomolecule consisting of carbon (C), hydrogen (H) and oxygen (O) atoms, usually with a hydrogen–oxygen atom ratio of 2:1 (as in water); in other words, with the empirical formula (where m may be different from n).
Carbon (from carbo "coal") is a chemical element with symbol C and atomic number 6.
Carbon dioxide (chemical formula) is a colorless gas with a density about 60% higher than that of dry air.
Carboxylation is a chemical reaction in which a carboxylic acid group is produced by treating a substrate with carbon dioxide.
A carboxylic acid is an organic compound that contains a carboxyl group (C(.
Catabolism (from Greek κάτω kato, "downward" and βάλλειν ballein, "to throw") is the set of metabolic pathways that breaks down molecules into smaller units that are either oxidized to release energy or used in other anabolic reactions.
A chemical reaction is a process that leads to the transformation of one set of chemical substances to another.
Cis–trans isomerism, also known as geometric isomerism or configurational isomerism, is a term used in organic chemistry.
The enzyme citrate synthase E.C. 220.127.116.11 (previously 18.104.22.168) exists in nearly all living cells and stands as a pace-making enzyme in the first step of the citric acid cycle (or Krebs cycle).
Citric acid is a weak organic acid that has the chemical formula.
Coenzyme A (CoA,SCoA,CoASH) is a coenzyme, notable for its role in the synthesis and oxidation of fatty acids, and the oxidation of pyruvate in the citric acid cycle.
The coenzyme Q: cytochrome c – oxidoreductase, sometimes called the cytochrome bc1 complex, and at other times complex III, is the third complex in the electron transport chain, playing a critical role in biochemical generation of ATP (oxidative phosphorylation).
Coenzyme Q10, also known as ubiquinone, ubidecarenone, coenzyme Q, and abbreviated at times to CoQ10, CoQ, or Q10 is a coenzyme that is ubiquitous in animals and most bacteria (hence the name ubiquinone).
A cofactor is a non-protein chemical compound or metallic ion that is required for an enzyme's activity.
A condensation reaction is a class of an organic addition reaction that proceeds in a step-wise fashion to produce the addition product, usually in equilibrium, and a water molecule (hence named condensation).
Convergent evolution is the independent evolution of similar features in species of different lineages.
Cytidine triphosphate is a pyrimidine nucleoside triphosphate.
Cytochromes are heme-containing proteins.
Cytosine (C) is one of the four main bases found in DNA and RNA, along with adenine, guanine, and thymine (uracil in RNA).
The cytosol, also known as intracellular fluid (ICF) or cytoplasmic matrix, is the liquid found inside cells.
Decarboxylation is a chemical reaction that removes a carboxyl group and releases carbon dioxide (CO2).
In chemistry and the biological sciences, a dehydration reaction, also known as Zimmer's hydrogenesis, is a chemical reaction that involves the loss of a water molecule from the reacting molecule.
Dihydroxyacetone phosphate (DHAP, also glycerone phosphate in older texts) is the anion with the formula HOCH2C(O)CH2OPO32-.
Deoxyribonucleic acid (DNA) is a thread-like chain of nucleotides carrying the genetic instructions used in the growth, development, functioning and reproduction of all known living organisms and many viruses.
The electron is a subatomic particle, symbol or, whose electric charge is negative one elementary charge.
An electron transport chain (ETC) is a series of complexes that transfer electrons from electron donors to electron acceptors via redox (both reduction and oxidation occurring simultaneously) reactions, and couples this electron transfer with the transfer of protons (H+ ions) across a membrane.
An equivalent (symbol: equiv) is the amount of a substance that reacts with (or is equivalent to) an arbitrary amount of another substance in a given chemical reaction.
An essential amino acid, or indispensable amino acid, is an amino acid that cannot be synthesized ''de novo'' (from scratch) by the organism, and thus must be supplied in its diet.
Fat is one of the three main macronutrients, along with carbohydrate and protein.
In chemistry, particularly in biochemistry, a fatty acid is a carboxylic acid with a long aliphatic chain, which is either saturated or unsaturated.
Fatty acid metabolism consists of catabolic processes that generate energy, and anabolic processes that create biologically important molecules (triglycerides, phospholipids, second messengers, local hormones and ketone bodies).
Fatty acid synthesis is the creation of fatty acids from acetyl-CoA and NADPH through the action of enzymes called fatty acid synthases.
In biochemistry, flavin adenine dinucleotide (FAD) is a redox cofactor, more specifically a prosthetic group of a protein, involved in several important enzymatic reactions in metabolism.
Fructose 1,6-bisphosphate, also known as Harden-Young ester, is fructose sugar phosphorylated on carbons 1 and 6 (i.e., is a fructosephosphate).
Fumarase (or fumarate hydratase) is an enzyme that catalyzes the reversible hydration/dehydration of fumarate to malate.
Fumaric acid or trans-butenedioic acid is the chemical compound with the formula HO2CCH.
Glucagon is a peptide hormone, produced by alpha cells of the pancreas.
Gluconeogenesis (GNG) is a metabolic pathway that results in the generation of glucose from certain non-carbohydrate carbon substrates.
Glucose is a simple sugar with the molecular formula C6H12O6.
Glutamic acid (symbol Glu or E) is an α-amino acid with formula.
Glutamine (symbol Gln or Q) is an α-amino acid that is used in the biosynthesis of proteins.
Glyceraldehyde 3-phosphate, also known as triose phosphate or 3-phosphoglyceraldehyde and abbreviated as G3P, GA3P, GADP, GAP, TP, GALP or PGAL, is the metabolite that occurs as an intermediate in several central pathways of all organisms.
Glycerol (also called glycerine or glycerin; see spelling differences) is a simple polyol compound.
Glycolysis (from glycose, an older term for glucose + -lysis degradation) is the metabolic pathway that converts glucose C6H12O6, into pyruvate, CH3COCOO− + H+.
The glyoxylate cycle, a variation of the tricarboxylic acid cycle, is an anabolic pathway occurring in plants, bacteria, protists, and fungi.
Guanosine diphosphate, abbreviated GDP, is a nucleoside diphosphate.
Guanosine-5'-triphosphate (GTP) is a purine nucleoside triphosphate.
Sir Hans Adolf Krebs (25 August 1900 – 22 November 1981) was a German-born British physician and biochemist.
A hemeprotein (or haemprotein; also hemoprotein or haemoprotein), or heme protein, is a protein that contains a heme prosthetic group.
Hemoglobin (American) or haemoglobin (British); abbreviated Hb or Hgb, is the iron-containing oxygen-transport metalloprotein in the red blood cells of all vertebrates (with the exception of the fish family Channichthyidae) as well as the tissues of some invertebrates.
Hypoxia-inducible factor 1-alpha, also known as HIF-1-alpha, is a subunit of a heterodimeric transcription factor hypoxia-inducible factor 1 (HIF-1) that is encoded by the HIF1A gene.
In chemistry, a hydration reaction is a chemical reaction in which a substance combines with water.
Hydrolysis is a term used for both an electro-chemical process and a biological one.
Hypoxia-inducible factors (HIFs) are transcription factors that respond to decreases in available oxygen in the cellular environment, or hypoxia.
Isocitrate dehydrogenase (IDH) and is an enzyme that catalyzes the oxidative decarboxylation of isocitrate, producing alpha-ketoglutarate (α-ketoglutarate) and CO2.
Isocitric acid is a structural isomer of citric acid.
KEGG (Kyoto Encyclopedia of Genes and Genomes) is a collection of databases dealing with genomes, biological pathways, diseases, drugs, and chemical substances.
Keto acids or ketoacids (also called oxo acids or oxoacids) are organic compounds that contain a carboxylic acid group and a ketone group.
Ketone bodies are three water-soluble molecules (acetoacetate, beta-hydroxybutyrate, and their spontaneous breakdown product, acetone) containing the ketone group that are produced by the liver from fatty acids during periods of low food intake (fasting), carbohydrate restrictive diets, starvation, prolonged intense exercise, alcoholism or in untreated (or inadequately treated) type 1 diabetes mellitus.
Lactic acid is an organic compound with the formula CH3CH(OH)COOH.
The light-independent reactions, or dark reactions, of photosynthesis are chemical reactions that convert carbon dioxide and other compounds into glucose.
Malate dehydrogenase (MDH) is an enzyme that reversibly catalyzes the oxidation of malate to oxaloacetate using the reduction of NAD+ to NADH.
Malic acid is an organic compound with the molecular formula C4H6O5.
Metabolism (from μεταβολή metabolē, "change") is the set of life-sustaining chemical transformations within the cells of organisms.
The MetaCyc database contains extensive information on metabolic pathways and enzymes from many organisms.
In organic chemistry, a methylene bridge, methylene spacer, or methanediyl group is any part of a molecule with formula --; namely, a carbon atom bound to two hydrogen atoms and connected by single bonds to two other distinct atoms in the rest of the molecule.
The mevalonate pathway, also known as the isoprenoid pathway or HMG-CoA reductase pathway is an essential metabolic pathway present in eukaryotes, archaea, and some bacteria.
In the mitochondrion, the matrix is the space within the inner membrane.
The mitochondrion (plural mitochondria) is a double-membrane-bound organelle found in most eukaryotic organisms.
A molecule is an electrically neutral group of two or more atoms held together by chemical bonds.
Myoglobin (symbol Mb or MB) is an iron- and oxygen-binding protein found in the muscle tissue of vertebrates in general and in almost all mammals.
Nicotinamide adenine dinucleotide (NAD) is a coenzyme found in all living cells.
The Nobel Prize in Physiology or Medicine (Nobelpriset i fysiologi eller medicin), administered by the Nobel Foundation, is awarded once a year for outstanding discoveries in the fields of life sciences and medicine.
Nucleoside-diphosphate kinases (NDPKs, also NDP kinase, (poly)nucleotide kinases and nucleoside diphosphokinases) are enzymes that catalyze the exchange of terminal phosphate between different nucleoside diphosphates (NDP) and triphosphates (NTP) in a reversible manner to produce nucleotide triphosphates.
Oxaloacetic acid (also known as oxalacetic acid) is a crystalline organic compound with the chemical formula HO2CC(O)CH2CO2H.
Oxalosuccinic acid is a substrate of the citric acid cycle.
Oxidative phosphorylation (or OXPHOS in short) (UK, US) is the metabolic pathway in which cells use enzymes to oxidize nutrients, thereby releasing energy which is used to produce adenosine triphosphate (ATP).
The oxoglutarate dehydrogenase complex (OGDC) or α-ketoglutarate dehydrogenase complex is an enzyme complex, most commonly known for its role in the citric acid cycle.
A phosphate is chemical derivative of phosphoric acid.
Phosphoenolpyruvate carboxykinase (PEPCK) is an enzyme in the lyase family used in the metabolic pathway of gluconeogenesis.
Phosphoenolpyruvate (2-phosphoenolpyruvate, PEP) as the ester derived from the enol of pyruvate and phosphate.
Phosphofructokinase is a kinase enzyme that phosphorylates fructose 6-phosphate in glycolysis.
Porphyrins (/phɔɹfɚɪn/ ''POUR-fer-in'') are a group of heterocyclic macrocycle organic compounds, composed of four modified pyrrole subunits interconnected at their α carbon atoms via methine bridges (.
In chemistry, a precursor is a compound that participates in a chemical reaction that produces another compound.
Procollagen-proline dioxygenase, commonly known as prolyl hydroxylase, is a member of the class of enzymes known as alpha-ketoglutarate-dependent hydroxylases.
Proline (symbol Pro or P) is a proteinogenic amino acid that is used in the biosynthesis of proteins.
Propionyl-CoA is a coenzyme A derivative of propionic acid.
A protease (also called a peptidase or proteinase) is an enzyme that performs proteolysis: protein catabolism by hydrolysis of peptide bonds.
Proteins are large biomolecules, or macromolecules, consisting of one or more long chains of amino acid residues.
Protein catabolism is the breakdown of proteins into amino acids and simple derivative compounds, for transport into the cell through the plasma membrane and ultimately for the polymerization into new proteins via the use of ribonucleic acids (RNA) and ribosomes.
A protein complex or multiprotein complex is a group of two or more associated polypeptide chains.
A purine is a heterocyclic aromatic organic compound that consists of a pyrimidine ring fused to an imidazole ring.
Pyridoxine, also known as vitamin B6, is a form of vitamin B6 found commonly in food and used as dietary supplement.
Pyrimidine is an aromatic heterocyclic organic compound similar to pyridine.
Pyruvate carboxylase (PC) encoded by the gene PC is an enzyme of the ligase class that catalyzes (depending on the species) the physiologically irreversible carboxylation of pyruvate to form oxaloacetate (OAA).
Pyruvate decarboxylation or pyruvate oxidation is the conversion of pyruvate into acetyl-CoA (activated acetate) by the enzyme pyruvate dehydrogenase.
Pyruvate dehydrogenase is the first component enzyme of pyruvate dehydrogenase complex (PDC).
Pyruvate dehydrogenase complex (PDC) is a complex of three enzymes that converts pyruvate into acetyl-CoA by a process called pyruvate decarboxylation.
pyruvate dehyrogenase phosphatase catalytic subunit 1 (PDPC 1), also known as protein phosphatase 2C, is an enzyme that in humans is encoded by the PDP1 gene.
Pyruvic acid (CH3COCOOH) is the simplest of the alpha-keto acids, with a carboxylic acid and a ketone functional group.
Redox (short for reduction–oxidation reaction) (pronunciation: or) is a chemical reaction in which the oxidation states of atoms are changed.
A reducing agent (also called a reductant or reducer) is an element (such as calcium) or compound that loses (or "donates") an electron to another chemical species in a redox chemical reaction.
The reverse Krebs cycle (also known as the reverse tricarboxylic acid cycle, the reverse TCA cycle, or the reverse citric acid cycle) is a sequence of chemical reactions that are used by some bacteria to produce carbon compounds from carbon dioxide and water.
Ribonucleic acid (RNA) is a polymeric molecule essential in various biological roles in coding, decoding, regulation, and expression of genes.
Smith College is a private, independent women's liberal arts college with coed graduate and certificate programs in Northampton, Massachusetts.
Striated muscle tissue is a muscle tissue that features repeating functional units called sarcomeres, in contrast with smooth muscle tissue which does not.
Substrate-level phosphorylation is a metabolic reaction that results in the formation of ATP or GTP by the direct transfer of a phosphoryl (PO3) group to ADP or GDP from another phosphorylated compound.
Succinate dehydrogenase (SDH) or succinate-coenzyme Q reductase (SQR) or respiratory Complex II is an enzyme complex, found in many bacterial cells and in the inner mitochondrial membrane of eukaryotes.
Succinic acid is a dicarboxylic acid with the chemical formula (CH2)2(CO2H)2.
Succinyl coenzyme A synthetase (SCS, also known as succinyl-CoA synthetase or succinate thiokinase or succinate-CoA ligase) is an enzyme that catalyzes the reversible reaction of succinyl-CoA to succinate.
Succinyl-Coenzyme A, abbreviated as Succinyl-CoA or SucCoA, is a combination of succinic acid and coenzyme A.
---> Thymine (T, Thy) is one of the four nucleobases in the nucleic acid of DNA that are represented by the letters G–C–A–T.
Transamination, a chemical reaction that transfers an amino group to a ketoacid to form new amino acids.
A tricarboxylic acid is an organic carboxylic acid whose chemical structure contains three carboxyl functional groups (-COOH).
A triglyceride (TG, triacylglycerol, TAG, or triacylglyceride) is an ester derived from glycerol and three fatty acids (from tri- and glyceride).
Ubiquinol is an electron-rich (reduced) form of coenzyme Q10.
A ubiquitin ligase (also called an E3 ubiquitin ligase) is a protein that recruits an E2 ubiquitin-conjugating enzyme that has been loaded with ubiquitin, recognizes a protein substrate, and assists or directly catalyzes the transfer of ubiquitin from the E2 to the protein substrate.
The University of Sheffield (informally Sheffield University) is a public research university in Sheffield, South Yorkshire, England.
Uracil (U) is one of the four nucleobases in the nucleic acid of RNA that are represented by the letters A, G, C and U. The others are adenine (A), cytosine (C), and guanine (G).
Uridine diphosphate, abbreviated UDP, is a nucleotide diphosphate.
Uridine monophosphate (UMP), also known as 5′-uridylic acid (conjugate base uridylate), is a nucleotide that is used as a monomer in RNA.
Uridine-5'-triphosphate (UTP) is a pyrimidine nucleoside triphosphate, consisting of the organic base uracil linked to the 1' carbon of the ribose sugar, and esterified with tri-phosphoric acid at the 5' position.
Vitamin D is a group of fat-soluble secosteroids responsible for increasing intestinal absorption of calcium, magnesium, and phosphate, and multiple other biological effects.
Water is a transparent, tasteless, odorless, and nearly colorless chemical substance that is the main constituent of Earth's streams, lakes, and oceans, and the fluids of most living organisms.
Cis-aconitic acid, Citrate cycle, Citric Acid Cycle, Citric Acid cycle, Citric cycle, Creb cycle, Glycolysis cycle, Kerbs cycle, Kreb Cycle, Kreb cycle, Kreb's Citric Acid Cycle, Kreb's Cycle, Kreb's citric acid cycle, Kreb's cycle, Krebb cycle, Krebbs Cycle, Krebs Citric Acid Cycle, Krebs Cycle, Krebs citric acid cycle, Krebs cycle, Krebs cycle reaction, Krebs cylce, Krebs' Cycle, Krebs' cycle, Krib cycle, Oxaloacetate cycle, TCA Cycle, TCA cycle, TCAC, Tca cycle, Tcac, The Krebs Cycle, The citric acid cycle, Tri-carboxylic acid cycle, Tricaboxylic acid cycle, Tricarboxylic Acid Cycle, Tricarboxylic acid cycle, Tricyclic acid cycle.