Plastids are present in the cytoplasm of plant cells. Plastids are of three types:
1. Chloroplast: They are green coloured plastids. They have chlorophyll and helps in making food with the help of the process photosynthesis.
2. Chromoplast : They are coloured plastids. The different colours of flowers are due to the presence of these plastids.
3. Leucoplasts : These plastids help in storing food.