Plants are known as purifiers of air due to the process of:

The product of photosynthesis is transported from the leaves to various parts of the plants and stored in some cells before being utilized. What are the cells or tissues that store them?

$P$: During the dark reaction of photosynthesis,ketotriose is synthesized.
$Q$: The sugar present in the structure of $ATP$ is an example of a ketopentose sugar.

$I.$ In $C_{3}$-plants,the Calvin pathway takes place in mesophyll cells.
$II.$ In $C_{4}$-plants,the Calvin pathway takes place in the mesophyll cells.
Which of the following statements is true?

Leaf photosynthates are transported to other parts of higher plants through

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 : ......