During the ionization of water in photosynthe | vedclass

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(B) During the light-dependent reactions of photosynthesis,water molecules undergo photolysis (splitting of water) in the lumen of the thylakoid. This

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$NADP^+$

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(B) During the light-dependent reactions of photosynthesis,water molecules undergo photolysis (splitting of water) in the lumen of the thylakoid. This process releases electrons,protons $(H^+)$,and oxygen $(O_2)$. The electrons move through the electron transport chain,while the protons accumulate in the thylakoid lumen. Finally,these $H^+$ ions are used to reduce $NADP^+$ to $NADPH$ with the help of the enzyme $NADP$ reductase,which is located on the outer side of the thylakoid membrane.

During the ionization of water in photosynthesis,the $H^+$ ions released at the end are accepted by which of the following?

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