For the synthesis of one molecule of hexose,how many additional molecules of $ATP$ are required in $C_3$ and $C_4$ pathways,respectively,besides the $12$ molecules of $NADPH_2$?

Match the following pairs:
$(A)$ Emerson effect $(a)$ $C_4$ cycle
$(B)$ Hill reaction $(b)$ Photolysis
$(C)$ Calvin cycle $(c)$ $C_3$ cycle
$(D)$ Hatch and Slack cycle $(d)$ Photosystem-$I$ and $II$

Sugar produced in photosynthesis is converted into starch in

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 $P680$.

$I.$ Photosystem-$I$ is a photosynthetic pigment system located on the appressed part of grana and thylakoids.
$II.$ Photosystem-$II$ is a photosynthetic pigment system located on the non-appressed part of stroma only.
Identify whether the given statements are correct or incorrect and choose the correct option accordingly.

The energy stored in glucose basically comes from