What is the pH gradient across the thylakoid membrane betwee

What is the pH gradient across the thylakoid membrane (between the lumen and the stroma) used to do?

The light reactions cause acidification of the lumen and alkalization of the stroma of the chloroplast. Why do these pH changes occur?

Thank you for your help!

Solution

PH GRADIENT ACROSS THE THYLAKOID MEMBRANE USED TO DO:It is used as energy source. the chloroplasts contain stacks of membranes with chlorophyll called thylakoid membrane.....the light process consists of photons in chlorophyll and a creation of electrical potential and A PH gradient across the thylakoid membrane. this energy is used to produce chemical energy in the form of ATP and NADPH find a way to the stroma .

the pH gradient across the thylakoid membrane moves the protons to the thylakoid lumen in to stroma.......it is used to pump protons....

the light reactions cause acidification of the lumen and alkalization of the stroma of the chloroplast. lumen acidification induces growth of fluorescence non-photochemical quenching and decreases electron flow through photosystem II,it means pH decreases in the stroma and lumen. stroma alkalization is a regulatory mechanism that facilitates optimal stromal PH in the has been primarily used   to H+ pumping into the thylakoid lumen....................