For the reduction of one molecule of $CO_2$ with water,the energy required is (in $kcal$)

Consider the following statements regarding photosynthesis:
$(A)$ $ATP$ formation during photosynthesis is termed as photophosphorylation.
$(B)$ Kranz anatomy pertains to leaf.
$(C)$ Reduction of $NADP^+$ to $NADPH$ occurs during Calvin cycle.
$(D)$ In a chlorophyll molecule,magnesium is present in the phytol tail.
Which of the above statements are correct?

Which of the following has been used in photosynthetic researches?

Most abundant protein of the biological world is

Give scientific reasons:
$(1)$ The productivity of $C_4$ plants is more than $C_3$ plants.
$(2)$ It is necessary that the Calvin cycle runs for six times.

Analogy type question:
$(1)$ Biosynthetic phase : Based on $CO_2$ and $H_2O$ :: Phosphorylation : ......
$(2)$ First product of $C_3$ cycle : $PGA$ :: First product of $C_4$ cycle : ......