[BIO 203] - Final Exam Guide - Ultimate 70 pages long Study Guide!

What are the electron sources for the two electron transportchains of the light reactions (light and dark reactions)?

I think it is Photosynthesis I and II. This isfrom the study guide for my final exam coming up. Please help me beable to answer this question correctly. Is my answers correct? Ifnot please provide an explaination with a correct answer.

Thank You!