The primary acceptor of $CO_2$ in $C_4$ plants is

In $CAM$ plants,the source of $CO_2$ for photosynthesis during the day is . . . . . . .

Assertion : $Amaranthus$ and sugarcane are called as Hatch and Slack plants.
Reason : One glucose is formed by fixation of $6 \,CO_2$ in the plants.

In $C_4$ plants,sugar is produced in

$CO_{2}$-fixation $C_{4}$ pathway was proposed by:

In Kranz anatomy,the bundle sheath cells have .......