$A$ representative species has a stoma of $4 \ \mu m$ width and $26 \ \mu m$ length in:

Which of the following groups of organisms does not produce $O_2$ during photosynthesis?

Which of the following statements is incorrect regarding photosynthesis?

Photosynthesis is a $..............$ process.

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 $NADPH_2$?

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 : ............