Question

The reaction centre of PS- II is

• A. Chl-a, 700
• B. Chl-a, 680
• C. Chl-a, 673
• D. Chl-a, 650

Answer 1

The correct option is B Chl-a, 680

PS- II is a photosynthetic pigment system along with some electron carriers and it is located in the appressed part of the grana thylakoids. PS-II consists of following pigment molecules: one molecule of Chl-a (680) which is the reaction centre and a number of Chl-a molecules which act as the antenna. In addition to this, Chl-b and molecules of carotenoids which form the accessory pigments are present.

So, the correct answer is A.