Why do irreversible reactions tend to be the most heavily regulated? Select the

Question

Why do irreversible reactions tend to be the most heavily regulated? Select the BEST answer. A. To ensure that an unfixable mistake does not occur (i.e. once a product is made, the cell is stuck with that product. B. The reversible reactions are too difficult to regulate. C. The large, negative delta G value is the driving force of the reaction and must be maintained. D. The irreversible reactions evolved first along with metabolic regulation. E. Only irreversible enzymes can by turned on and off by phosphorylation.

Explanation / Answer

Answer:Only Irreversible enzymes can be turned on and off by phosphorylation

.Irreversible reactions require enzymes and catalytic roles.Reversible binding of allosteric effectors control the irreversible reactions.regulation is by a process such as phosphorylation, dephosphorylation and transcriptional control.

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