square : 14. The photons of light excite electrons and jump along the electron transport chain (ETC). pumping protons and ions into the lumen, producing square : and splitting the water molecule into oxygen gas and square : ions. Orygen diffuses out, and the ions build up in the square : building a square : charge.

This question is about the process of photosynthesis, specifically the light-dependent reactions that occur in the thylakoid membrane of the chloroplasts. The photons of light excite electrons, which then move along the electron transport chain (ETC). As they move, they pump protons and ions into the lumen, creating a proton gradient. This process also involves the splitting of water molecules into oxygen gas and hydrogen ions. The oxygen gas diffuses out of the chloroplast, while the hydrogen ions build up in the lumen, creating a positive charge. This positive charge is used to generate ATP, a form of chemical energy that can be used by the plant.