Question

what is the layout of the leaf shafts?

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Answer 1

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Answer 2

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Plants are an essential part of the ecosystem. Every life on the earth is directly or indirectly dependent on plants. Among the different parts of a plant, the leaf is the most essential.

Primarily, leaves have two functions: photosynthesis and transpiration. In some plants, it takes up the responsibility of reproduction also.

Table of Contents

Structure

Types

Modification

Function

Key Points

Let’s learn more about the morphology of leaves, parts of a leaf, different types of leaves and their modifications.

Structure of a Leaf

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.

The structure of a leaf is described below in detail :

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.

Explanation:

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