Final answer:
Plants use the Hydrogen ions captured during light reactions of photosynthesis to power the cellular respiration and electron transport chain.
Step-by-step explanation:
During the light reactions of photosynthesis, plants capture hydrogen ions (H+) and store them temporarily. These hydrogen ions are captured by the molecule NADP+ to form NADPH. NADPH is then used in the Calvin cycle to convert carbon dioxide into glucose. The captured hydrogen ions play a crucial role in powering the cellular respiration of plants.
In cellular respiration, the hydrogen ions produced during the light reactions are used to power the electron transport chain. The hydrogen ions are transported across the thylakoid membrane and into the intermembrane space of the mitochondria. The flow of these hydrogen ions back across the membrane drives the production of ATP, which is the primary energy source for cellular processes. Therefore, the hydrogen ions captured during the light reactions of photosynthesis ultimately power the electron transport chain in the mitochondria.
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