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9 . Metabolic pathways in a cellular context are very efficient. Different feedb

ID: 264924 • Letter: 9

Question

9. Metabolic pathways in a cellular context are very efficient. Different feedback/end-product regulatory mechanisms operate to avoid wasteful formation of metabolic end-products and intermediates in a pathway.  Given below is the schematic representation of a branched metabolic pathway(s).  The direction of the arrow(s) indicate the direction of the metabolic pathway(s). E1, E2, E3, ………E18represent the enzymes catalyzing the individual reactions. A, B, C……….Z, represent the different metabolites in the metabolic pathway(s). Assume that the regulation of the metabolic pathway is most efficient and none of the intermediates and end-products are wastefully formed or allowed to accumulate in excess.  (40 points)

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Explanation / Answer

9 . Metabolic pathways in a cellular context are very efficient. Different feedb

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