Answer : Parenchyma cells have many functions to perform in the plant body.
Their functions include :
Storage of food and water
Allows gaseous exchange
Provides rigidity to softer parts of the plant
Stores waste products like resins, gum, crystals etc.
Chlorenchyma - Parenchyma with chloroplast, performs photosynthesis
Aerenchyma - Parenchyma with large air cavities that provides buoyancy to aquatic plants