All the energy for living organisms comes as radiation in the form of......from the sun and is captured by.......

Which of the following statements with regard to photosynthesis is/are correct?
$I$. In $C_{4}$-plants,the primary $CO_{2}$ acceptor is $PEP$.
$II$. In the photosynthetic process,$PS-II$ absorbs energy at or just below $680 \;nm$.
$III$. The pigment that is present in the Pigment System-$I$ is $P680$.

In plants,the uptake of $CO_2$ and the release of $O_2$ is a process called .........

Analogy type questions:
$(1)$ $C_4$ plants : Show $CO_2$ saturation at $360 \,\mu l L^{-1}$ :: $C_3$ plants : Show $CO_2$ saturation at concentrations above ............
$(2)$ Green plants : $H_2O$ as hydrogen donor :: Green sulfur bacteria : ............

What is the unique process which has supported life on this planet?

Find the incorrect statement$(s)$ about photosynthesis from the following:
$A$. The water-splitting complex is associated with $PS-I$.
$B$. $C_4$ plants use the $C_3$ pathway of $CO_2$ fixation as the main biosynthetic pathway.
$C$. In $C_4$ plants,photorespiration does not occur.
$D$. $C_3$ plants exhibit 'Kranz' anatomy.
$E$. $ATP$ synthesis in chloroplast occurs through chemiosmosis.