Question

Define a leaf by drawing a labelled diagram of its parts.

Answer 1

Leaf is a flat, thin, green, lateral structure borne on the stem at a node. It usually has a stalk called petiole and a pair of very small leaves at the base of the petiole called stipules. The broad expanded green part of the leaf is called lamina, which has a thick midrib at the centre. On either side of the midrib, thin veins branch out to form a network of veins or veinlets.