Discuss “The respiratory pathway is an amphibolic pathway”.

Asked by Abhisek | 11 months ago |  185

##### Solution :-

The amphibolic pathway is the one that is used for both breakdown (catabolism) and build-up (anabolism) reactions. Respiratory pathways are mainly a catabolic process that serves to run the living system by providing energy. Several intermediates are produced by the respiratory pathway. Many of them serve as raw materials for the formation of both primary and secondary metabolites. acetyl CoA is essential not only for the Krebs cycle but also for the synthesis of fatty acids, aromatic compounds, steroids, terpenes and carotenoids. In amination, $$\alpha-$$ ketoglutarate forms glutamate (an important amino acid). In amination, OAA (Oxaloacetic acid) produces aspartate. Aspartate and glutamate are components of proteins. Other products include pyrimidines and alkaloids. Succinyl CoA is the precursor to cytochromes and chlorophyll. When fatty acids are used as a substrate, they are broken down to acetyl CoA before entering the respiratory pathway. acetyl CoA is withdrawn from the respiratory pathway when the organism needs to synthesize fatty acids. As a result, the respiratory pathway is involved in both the breakdown and synthesis of fatty acids. Similarly, respiratory intermediates serve as a link during the breakdown and synthesis of proteins. Catabolism is the breaking down processes within a living organism, while anabolism is the synthesis of new ones. Since the respiratory system is engaged in both anabolism and catabolism in plants, it is better to thinkof it as an amphibolic instead of a catabolic pathway.

Answered by Pragya Singh | 11 months ago

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