The answer would be : receiving electrons from the thylakoid membrane electron transport chain
Until today, scientist still has not yet to discover the importance/significance of photo system I, it could be part of imperfect evolutionary process such as our cecum. all we know, this reaction happened to all Algae and plants and it really dependent on light<span />
Answer: 3/4 (38 out of 50) Explanation: After being officially proposed, either congress or a national convention of the states, a constitutional amendment must then be ratified by 38 out of 50 of the states.