I am not sure which part of this question is incorrect Now a

I am not sure which part of this question is incorrect.

Now a drug that blocks the ability of plastoquinone (Pq) to pass electrons on to the cytochrome b complex (cyt b) is used. Which statements would be true? Splitting water by Photosystem II would be decreased because there would be no way for plastoquinone to dump electrons off True Proton pumping into the lumen would be decreased True ATP production would continue without alteration True.

Solution

now a drug that block the ability of plastoquinone to pass the electron to cytochrome b complex is used.

the incorrect statement is ATP production will continue without alternation. electron transport via cytochrome b is responsible for creating proton gradient that drives the synthesis of ATP. THE PROTON PUMP IN ALL PHOTOSYNTHETIC system resembles complex iii of mitochondria.