Transport across the inner membrane of chloroplasts depends on the proton gradient established during ATP synthesis, similar to mitochondria. Can someone explain why this statement is false?

in 2005, a new species of green sulfur bacteria wasdiscovered near a geothermal vent at the bottom of the ocean. An exceptionally efficient light-harvesting mechanism allows these bacteria to carry out photosynthesis where the only illumination is a dim volcanic glow emanating from the vent. Cell membranes are required for electron transfer chains in the light-dependent reactions, but these bacteria have no internal membranes. How do you think they carry out the light-dependent reactions?

in mitochondria, the electron transport chain pumps protons from the matrix into the intermembrane space. in what direction are protons pumped by the electron transport chain in chloroplasts?