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Question

(B) Metabolic pathways in a cell are broadly classified into catabolic and anabolic pathways.Catabolic pathways involve the breakdown of complex molec

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The free energy released from one pathway is used to drive the other.

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(B) Metabolic pathways in a cell are broadly classified into catabolic and anabolic pathways.Catabolic pathways involve the breakdown of complex molecules into simpler ones,a process that releases energy (exergonic).Anabolic pathways involve the synthesis of complex molecules from simpler ones,a process that requires energy (endergonic).These two pathways are coupled because the free energy released during catabolic reactions is captured (often in the form of $ATP$) and subsequently used to drive the energy-requiring anabolic reactions.Therefore,the coupling ensures the efficient utilization of energy within the cell.

Catabolic and anabolic pathways are often coupled in the cell. Why?

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