Photosynthesis Question 36
36. Electrons from excited chlorophyll molecule of photosystem II are accepted first by: [2008]
(a) Cytochrome-b
(b) Cytochrome-f
(c) Quinone
(d) Ferredoxin
Show Answer
Answer : c
Hints & Solution
(c) Electrons from excited chlorophyll molecule of photosystem II are accepted first by quinone. Photosystem II is a photosynthetic pigment system along with some electron carriers that are located in the appressed part of the grana thylakoids. Photosystem II has chlorophyll a, b and carotenoids. Other components of PS II are phaeophytin, plastoquinone $(PQ)$, cytochrome complex and blue coloured copper containing plastocyanin.
