I Am Confused About This Question It Would Be Great To Get Help Do Electron Tran

I am confused about this question, it would be great to get help. Do electron transport chain and chemiosmosis have same starting materials or different? And does stage 2 of photosynthesis include both electron transport chain and chemiosmosis?

List all of the starting materials of:

Stage 2 Photosynthesis: (Electron Transport Chain)