Question

write about the Utility of stepwise oxidation :​

Answer 1

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$\bf\large\underline\green{Utility \:of \:stepwise \:oxidation:-}$

You have noted that both anaerobic and aerobic respiration are conducted in many steps. You may wonder what could be the utility of a metabolic pathway with so many steps? Such stepwise metabolism serves several purposes.

i. Astepwise release of the chemical bond energy facilitates the utilization of a relatively higher proportion of that energy in ATP synthesis.

ii. Activities of enzymes for the different steps may be enhanced or inhibited by specific compounds. This provides a means of controlling the rate of the pathway and the energy output according to need of the cell.

iii. The same pathway may be utilized for forming intermediates used in the synthesis of other biomolecules like amino acids.