anaplerotic
anaplerotic Describing a metabolic pathway that replenishes an intermediate in one of the main metabolic pathways. For example, some Krebs cycle intermediates function not only in energy metabolism but are also used as building blocks for the biosynthesis of various compounds. Unless these intermediates are replaced, these crucial pathways will slow down or halt completely. In plants, mitochondrial oxaloacetate, which is a Krebs cycle intermediate used for the synthesis of amino acids, can be replenished by the conversion of phosphoenolpyruvate derived from glycolysis in the cytosol. The cytosolic oxaloacetate is then reduced to malate, which enters the mitochondria, where it is reoxidized to oxaloacetate.
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Krebs Cycle , The Krebs cycle is a set of biochemical reactions that occur in the mitochondria. The Krebs cycle is the final common pathway for the oxidation of fo… Glyoxylate Cycle , glyoxylate cycle A metabolic pathway in plants and microorganisms that is a modified form of the Krebs cycle. It utilizes fats as a source of carbon… Urea cycle , urea cycle (ornithine cycle) The series of biochemical reactions that converts ammonia, which is highly toxic, and carbon dioxide to the much less to… Nutrient Cycle , nutrient cycle(mineral cycle) A biogeochemical cycle, in which inorganic nutrients move through the soil, living organisms, air, and water, or throug… citric acid cycle , citric acid cycle (Krebs' cycle, tricarboxylic acid cycle) The cyclic series of reactions which represent the principal means by which most living ce… acetyl coenzyme A , acetyl coenzyme A (acetyl CoA) A compound formed in the mitochondria when an acetyl group (CH3CO–), derived from the breakdown of fats, proteins, or…
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anaplerotic