In this task, you are given a question and an answer, you would be asked to create the sentence based on the Question-Answer provided. It should be contained within the Question-Answer provided.

[Q]: Question: What element do plants use to store energy as atp? Answer: oxygen
[A]: Oxygen element do plants use to store energy as atp.


[Q]: Question: Expansion of a gas into a vacuum is irreversible because the external pressure is measurably less than the internal pressure of the gas, and no states of what exist? Answer: equilibrium
[A]: Expansion of a gas into a vacuum is irreversible because the external pressure is measurably less than the internal pressure of the gas, and no states of equilibrium exist.


[Q]: Question: Proper kidney function is essential for homeostasis of what level, which in turn helps ensure the functioning of enzymes? Answer: ph
[A]:
Proper kidney function is essential for homeostasis of ph level, which in turn helps ensure the functioning of enzymes.