Question

Electrons from excited chlorophyll molecule of photosystem II are accepted first by:

• A. Plastoquinone
• B. Ferredoxin
• C. Cytochrome -b
• D. Cytochrome -f

Answer 1

The correct option is A Plastoquinone

Electrons from excited chlorophyll molecule of photosystem II are accepted first by plastoquinone.
Electrons from plastoquinone are transfered via cytochrome b and cytochrome f to plastocyanin, which passes them on to photosystem I during the non-cyclic photophosphorylation pathway.