Both the steps a- Synthesis of ATP using energy released from exergonic reactions and b- Hydrolysis of ATP to release energy that can be used to drive endergonic reactions are correct.
The ATP cycle refers to the periodic conversion of ATP to ADP and back to ATP. ADP (adenosine diphosphate) is created when the terminal phosphate from the three phosphate groups in ATP (adenosine triphosphate) is removed, and the energy released is used to perform any biological function.
The energy that has been stored is released to support a biological activity when the terminal phosphate is taken out of ATP, which transforms into ADP. Later, ADP is recharged back to ATP when a phosphate group is added. The ATP cycle refers to this continuous process of changing ATP into ADP and then back to ATP.
Any physical or chemical environmental factor that can change the 3-D form of an enzyme can have an impact on its activity. In feedback regulation, the last product of a metabolic process binds to the allosteric site of the first enzyme in the pathway to inactivate it. Most human enzymes function best in a pH range of 6 to 8. The reaction between carbon dioxide and water can be sped up by more than a million times with the enzyme carbonic anhydrase. Reactants are more likely to form in reactions with positive changes in free energy. The delta G is negative during ATP hydrolysis. A chemical known as an allosteric inhibitor attaches to an enzyme's site other than the active site and prevents the enzyme from performing its job.
Hence, both the steps are correct.
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