Answer
ATP synthase is stopped.
Step-by-step explanation:
When a compound enters the lipid bilayer of the plasma membrane and bind to hydrogen ion and causes its release too then no hydrogen is available to pass from ATP synthase.ATP synthase is present in the mitochondrial membrane when pass hydrogen ion into the lumen of mitochondria and due to proton gradient generates ATP molecule with a pass of hydrogen ion into lumen ATP is formed from ADP and inorganic phosphorus molecule.