Q. Electrons which gets excited in PS-I must replaced. These replacement ultimately come from
A) ATP
B) $H_{2}O$
C) PS-II
D) NAD
Explanation
Electron excited by PS-I used in the formation of $NADPH + H^{+}$. These electrons come ultimately from $H_{2}O\$through photosynthesis
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.