A chloroplast has a high ATP demand but a very low concentration of NADP+. Which pathway will the electrons most likely take?
Q1. A chloroplast has a high ATP demand but a very low concentration of NADP+. Which pathway will the electrons most likely take?
Answer: Cyclic photophosphorylation
Explanation: Cyclic photophosphorylation occurs when NADP+ levels are low to generate ATP only. Non-cyclic flow fails because it requires NADP+ as an acceptor.