Question

what are the function of plastids​

Answer 1

Plastids gives colour to the leaves of a plant.If the plastid contains chlorophyll then the leaf is green in colour else not

Laterly the contained chlorophyll traps the sun rays and use it in the process of photosynthesis.

Answer 2

They help in providing colour to the fruits and flowers of plants.
They help in storage of proteins.
They trap solar energy to make food by photosynthesis.