Question

In pigment system II, active chlorophyll is

• A. $P_{680}$
• B. $P_{700}$
• C. $P_{673}$
• D. $P_{720}$.

Answer 1

Answer: (A)

$P_{680}$

The plant needed enough energy to do the biosynthetic reactions. Its reaction centre is a molecule called P680 which absorbs light maximally at 680 nm.

So the correct option is 'P${}_6$${}_8$${}_0$.'