As the electrons pass through the electron transport chain between Photosystem I and II, they use their energy to pump _ into the __________________________ creating an electrochemical gradient, and making that space very (acidic/basic).

This is chemiosmosis. And the ultimate aim is to synthesis ATPs. Proton Motive Force generated from the electron transport chain continuously pump protons(H+) from the stroma into the thylakoid membrane of the chloroplast,

The build up of protons/H+ generated electrochemical gradients between this space and the stroma.

Therefore proton/H+ diffused down the gradient into the stroma. The energy generated from the downwards diffusion is used by the ATPase synthase to synthesize ATPs from ADP and inorganic phosphate (Pi), to be used in Calvin Cycle for CHO, productions.

The protons/H+ pumped by PMF and concentrated in the thylakoid memebrane is obtained from the split of Hydrogen atoms to electrons(e-) and H+. since pH is negative Log of [H+], therefore the space will be acidic from large concentration of H+/protons.

As the electrons pass through the electron transport chain between Photosystem I and II, they use their energy to pump ___________ into the ____________________________________ creating an electrochemical gradient, and making that space very (acidic/basic).

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As the electrons pass through the electron transport chain between Photosystem I and II, they use their energy to pump _ into the __________________________ creating an electrochemical gradient, and making that space very (acidic/basic).