Question

Which one will have lower redox potential?

• A. $LHC-I$
• B. $LHC-II$
• C. Primary $e^{-}$ acceptor of PS II
• D. $H_{2}O$

Answer 1

The correct option is B $LHC-II$

When light is absorbed by one of the many pigments in photosystem II, energy is passed inward from pigment to pigment until it reaches the reaction center. There, energy is transferred to P680, boosting an electron to a high energy level. The high-energy electron is passed to an acceptor molecule and replaced with an electron from water. This splitting of water releases the oxygen that we breathe. Lower redox potential means it will release the electrons with ease and vice versa.

So, the correct option is 'H2O'.