Photosynthesis takes place in:

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

Match the sites in column $I$ with the processes in column $II$ and choose the correct combination from the options:

Column $I$	Column $II$
$A$. Grana of chloroplast	$1$. Kreb's cycle
$B$. Stroma of chloroplast	$2$. Light reaction
$C$. Cytoplasm	$3$. Dark reaction
$D$. Mitochondrial matrix	$4$. Glycolysis

Which of the following pairs is incorrect?

Select the incorrect statement.

Read the following table and choose the correct pair.
$I$. $DCMU$ Herbicide: Inhibitor of non-cyclic electron transport
$II$. $PMA$ Fungicide: Reduces transpiration
$III$. Colchicine Alkaloid: Causes male sterility
$IV$. Soilrite Sodium alginate: Encapsulation of somatic embryos