Which Statement Explains Why the [ATP]/[ADP][P_i] Ratio is Relatively Stable

Question

Which statement explains why the [ATP]/[ADP][Pi] ratio is relatively stable in a cell?
A) [ATP] is always relatively low.
B) ATP consumption is balanced by ATP synthase activity.
C) ATP is used to regulate protein kinases.
D) ATPases ensure that ATP concentration does not become too large.
E) Energy consumption is minimized to ensure ATP is not consumed.

Accepted Answer

The relatively stable [ATP]/[ADP] ratio in a cell is maintained by a balance between ATP consumption and ATP synthesis by ATP synthase. This ensures that the cell has enough energy to carry out its functions while preventing an excessive buildup of ATP that could potentially disrupt cellular processes.