Question

<!--td {border: 1px solid #ccc;}br {mso-data-placement:same-cell;}--> Give a brief description on the structure of leaf.

Answer 1

<!--td {border: 1px solid #ccc;}br {mso-data-placement:same-cell;}--> Leaves are thin, flat organs responsible for photosynthesis in the plants.
It develops laterally at the node. It is an important part of the shoot system and it originates from shoot apical meristems.
Generally, leaf base, petiole, and lamina, together form the main parts of a leaf.

The important parts of a Leaf are:
1) 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.
2)Petiole: Petiole is the long, thin, stalk that links the leaf blade to the stem.
3)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.