Question

draw the diagram of a leaf and label​

Answer 1

Parts of a Leaf

Generally, leaf base, petiole, and lamina, together form the main parts of a leaf.

Leaf Base: This is the part where a leaf attaches to the stem. Leaf base has two small leaf-like structure called stipules. In plants like paddy, wheat, and other monocotyledons, this leaf base is wide and masks the stem.

Petiole: Petiole is the long, thin, stalk that links the leaf blade to the stem.

Lamina: Also known as leaf blade. It is the green, flat surface of the leaves. It consists of a small branched vein and veinlets. The vein that runs along the middle of the lamina is called midrib. Midrib divides the surface of the lamina into two. These veins and veinlets give rigidity to the leaf blade and help in the transportation of water and other substances.

Answer 2

A leaf is a plant organ that is flat, thin and usually green in color.

Explanation:

Leaf is mostly found above the ground and remains attached to the stem.

Parts of leaf are:

1. Petiole - It is the stalk that connects a leaf to the stem of the plant, it is made of complex conducting tissues called vascular tissues.
2. Leaf base - It is the lowermost part of a leaf, which is closest to the petiole.
3. Leaf blade or lamina - It is the thin, flat part of the leaf that is typically green in color. It is further divided into three parts:  i) leaf apex – the tip of the leaf blade, ii) leaf margin – the edge of the leaf and, iii) leaf veins – the small channels or capillaries, which are further subdivided into venules.

Labelled diagram is below.