Phosphoenol pyruvate $(PEP)$ is the primary $CO_2$ acceptor in

Kranz anatomy is concerned with

Which of the following is incorrect regarding Kranz anatomy?

In sorghum grass,the first $CO_2$ acceptor is .....,the first product is .......,and the productivity is ...... .

As compared to a ${C_3}$ plant,how many additional molecules of $ATP$ are needed for the net production of one molecule of hexose sugar by ${C_4}$ plants?

In what kind of plants do you come across 'Kranz' anatomy? To which conditions are those plants better adapted? How are these plants better adapted than the plants,which lack this anatomy?