Difference between: Dicot Root and Monocot Root, Dicot Stem and Monocot stem - Biology - Anatomy of Flowering Plants

Question

Difference between: Dicot Root and Monocot Root, Dicot Stem and
Monocot stem

Fakeha Anis · Accepted Answer

Solution: a Dicot and Monocot Root Tissue organization Dicot Monocot Figure

Epidermis Has a single layer of epidermal cells, some of which protrude to form root hairs Same as that of dicot root Cortex Has several layers of thin-walled parenchymatous cells, with intercellular spaces Same as that of dicot root Endodermis Single layer of barrel-shaped cells, without intercellular space, and contains Casparian strips (water impermeable layer consisting of waxy suberin) Same as that of dicot root Pericycle Has thick-walled parenchyma Initiation of lateral roots and vascular cambium during the secondary growth takes place in these cells Secondary growth is absent in monocots Pith Small and inconspicuous Large and well-developed Vascular bundle Single (Monoarch) More than six (Polyarch) b Dicot Stem and Monocot Stem

Dicot Stem Monocot Stem The vascular bundles are arranged in a ring This arrangement is a characteristic of dicot stem They are conjoint, open, and have endarch protoxylem The vascular bundles are scattered and closed with peripheral bundles being smaller than central Phloem parenchyma is absent and water containing cavities are present Pith is present Pith is absent

Dicot Stem	Monocot Stem
The vascular bundles are arranged in a ring. This arrangement is a characteristic of dicot stem. They are conjoint, open, and have endarch protoxylem.	The vascular bundles are scattered and closed with peripheral bundles being smaller than central. Phloem parenchyma is absent and water containing cavities are present.
Pith is present	Pith is absent

Tissue organization	Dicot	Monocot
Figure
Epidermis	Has a single layer of epidermal cells, some of which protrude to form root hairs	Same as that of dicot root
Cortex	Has several layers of thin-walled parenchymatous cells, with intercellular spaces	Same as that of dicot root
Endodermis	Single layer of barrel-shaped cells, without intercellular space, and contains Casparian strips (water impermeable layer consisting of waxy suberin)	Same as that of dicot root
Pericycle	Has thick-walled parenchyma Initiation of lateral roots and vascular cambium during the secondary growth takes place in these cells.	Secondary growth is absent in monocots.
Pith	Small and inconspicuous	Large and well-developed
Vascular bundle	Single (Monoarch)	More than six (Polyarch)