Anatomy - Root & Shoot — Chapter Summary

The outermost layer of the root

The outermost layer of the root called epiblema bears unicellular root hairs that absorb water and minerals from the soil. These hairs increase the su

Endodermis is the innermost layer

Endodermis is the innermost layer of the cortex with barrel-shaped cells. It contains Casparian strips on radial walls which regulate the movement of

All tissues inside the endodermis form

All tissues inside the endodermis form the stele. The pericycle, located just inside the endodermis, gives rise to lateral roots and vascular cambium

Dicot roots have radial vascular bundles

Dicot roots have radial vascular bundles (xylem and phloem on alternate radii), while dicot stems have conjoint, collateral, and open bundles. Monocot

In monocot stems

In monocot stems, ground tissue is parenchymatous with no clear separation into cortex and pith. In dicot stems, pith is central and stores nutrients.