What Is the Internal Structure of a Leaf?

A leaf is the main part of the plant, which performs photosynthesis. The internal structure of the leaf shows three main parts, they are epidermis with stomata, mesophyll cells and vascular system. Leaves of monocotyledons and dicotyledons differ from each other.

Dorsiventral leaf – Present in dicot plants and contains more stomata on abaxial or lower epidermis. Mesophyll cells contain chlorophyll pigment and differentiate into spongy and palisade parenchyma.

Isobilateral leaf – Present in monocot plants and stomata are present equally on both surfaces. Mesophyll does not differentiate into palisade and spongy parenchyma.

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