What is the most immediate role for the protons produced from water photolysis [foh-TOL-uh-sis] during photosynthesis?

W) React with oxygen to make water

X) Acidify the mitochondrial matrix and provide fuel for chemiosmosis

Y) Contribute to the proton gradient in the thylakoid and ultimately provide energy to make ATP

Z) Combine with carbon dioxide during sugar synthesis
Y) CONTRIBUTE TO THE PROTON GRADIENT IN THE THYLAKOID AND ULTIMATELY PROVIDE ENERGY TO MAKE ATP