Venturicidin is a powerful inhibitor of the chloroplast ATP synthase, interacting with the CFopart of the enzyme and blocking proton passage through the CFoCF1complex. How would venturicidin affect oxygen evolution in a suspension of well-illuminated chloroplasts? Would your answer change if the experiment were done in the presence of an uncoupling reagent such as 2, 4-dinitrophenol (DNP)? Explain.