Which of the following statements is true with regard to the light reaction of photosythesis

Options

A. In PS II the reaction centre chlorophyll a has an absorption peak at 700 nm, hence is called P 700
B. In PS I the reaction centre chlorophyll a has an absorption maxima at 680 nm and is called P 680
C. The splitting of the water molecule is associated with PS I
D. Photosystems I and II are involved in Z scheme

Answer

D

Explanation

Z – scheme of photosynthesis. The “Z – scheme” describes the oxidation and reduction changes during the light reaction of photosynthesis in the Z scheme, electrons are removed from the water and then donated to the (non – excited) oxidised to form the `P_(650)`