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20 Cards in this Set

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Aerobic phase of catabolism . Further oxidation of Pyurvate to Acetyl Co-A into H20 and C02. Cells comsume O2 and produce H20
Cellular Respiration
Pyurvate oxidized to Acytl Co A from this Enzyme. Co2 gas also formed
PHD (Pyruvate dehydrogenase complex). Also called an oxidative decarboxylation. Irreversible oxidation.
An ester of carboxylic acid with a thiol or mercatan
Thioester
A vitamin for some microorganisms; an intermediate carrier of hydrogen atoms and acyl groups in a-keto acid dehydrogenases
Lipoate
Movement of the chemical intermediates in a series of enzymcatalyzed reactions from the active site of one enzyme to that of the next enzyme in teh pahtway without leaving the surface of a protein complex that includes both enzymes.
Substrate channeling
A prosthetic group of cetain redox proteins invoved in electron transfers; Fe +2 or Fe+3. Bound to inorganic sulfur and teh Cys groups in the protein.
Iron sulfur Center
An enzyme that catalyzes the transfer of the terminal phosphate of a nucleoside 5'-triphosphate to a nucleoside 5-diphosphate
Nucleoside diphosphate kinase
Enzymes that catalyze condensations reactions in which no nucleoside triphosphate is required as an energy source
Synthases
Enzymes that catalyze condendation reactions in which no nucleoside triiphosphates is required as energy source.
Synthetases
Enzyme that catalyze condensation reactions in which two atoms are joined using the energy of ATP or naother energy rich compound
Ligases
Enzyme that catalyze the removal of a group from a molecule to form a double bond, or the additon of a group to a double bond.
Lyases
Enzymes that catalyze the phosphorylation of certain molecules of ATP
Kinases
Enzymes that catlyze phosphorylsis
Phosphorylases
Enzymes that hydrolyze a phosphate ester or anhydride, releasing inorganic phosphate Pi.
Phosphatases
A symmertric molecule that can react asymmertically with an enzyme having an asymmetric active site, generating a chiral product.
Prochiral molecule
A metobolic pathway used in both catabolism and anabolism
Amphibolic pathway
An enzyme catalyzed reaction that can replenish the supply of intermediates in the citric acid cycle.
Analplerotic reaction
A vitamin; an enzymatic cofactor involved in carboxylation reactions
Biotin
A supermolecular assembly of sequential metabolic enzymes.
Metabolon
A variant of the citric acid cycle, for the net conversion of acetate into succinate and, eventually, new carbohydrate, present in bacteria and some plant cells
Glyoxylate cycle