Photolysis of water molecules in chloroplasts are going to trigger release of O2 during the light dependent reactions followed by usage of this oxygen is as final acceptor for ATP generation via oxidative phosphorylation or electron transport in mitochondria. The water splitting delivers electrons in the light reactions of photosynthesis.
The oxygen concentration is going to remain constant in a plant cell in the above manner and it is mediated by the “attaining a compensation point at specific light intensity”. This is mainly going to occur during equal rate of the rate of respiration and the rate of photosynthesis result in no total net alteration in the concentration of O2 in the above palisade cell.
Thus, the options (a), (b) and (d) are incorrect.
Photolysis of water molecules in chloroplasts are going to trigger release of O2 during the light dependent reactions followed by usage of this oxygen is as final acceptor for ATP generation via oxidative phosphorylation or electron transport in mitochondria. The water splitting delivers electrons in the light reactions of photosynthesis.
Therefore, the correct option is – c. supply electrons in the light reactions.