Each part: 1 Mark
The different parts of a plant are - leaf, stem, roots, fruits, and flowers.
1. Leaves are the structures which develop on branches. These are green in colour due to the presence of a pigment called chlorophyll. They are considered to be food factories of the plant because photosynthesis occurs in the leaves. 
2. The stem is the part of the plant seen above the ground. It bears the leaves, flowers and fruits. It is almost green or woody. It grows towards sunlight.
3. The roots of a plant are mostly seen underground and appear brown in colour. Root bear tiny thread-like structures over called root hairs. Roots absorb water.
4. The flower is the reproductive structure of the plant. Flower helps the plant to give rise to new plants by the process of sexual reproduction.
5. Fruits are produced by flowers after fertilisation. Fruit is the fertilised ovary. The fruit contains seeds inside them.