what is cortical cell and what is difference between cortical cell and root hair
Answers
Answer:
Cortex, in plants, tissue of unspecialized cells lying between the epidermis (surface cells) and the vascular, or conducting, tissues of stems and roots. Cortical cells may contain stored carbohydrates or other substances such as resins, latex, essential oils, and tannins.
Difference between Cortical cell and root hair:
Root Hair:
* A root hair is a tubular outgrowth of a trichoblast, a hair-forming cell on
the epidermis of a plant root.
* As they are lateral extensions of a single cell and only rarely branched,
they are visible to the naked eye and light microscope.
* They are found only in the region of maturation of the root. Just prior to,
and during, root hair cell development, there is elevated phosphorylase
activity.
Cortical cells:
* The cortex is composed mostly of large thin-walled parenchyma cells of
the ground tissue system and shows little to no structural differentiation.
* The outer cortical cells often acquire irregularly thickened cell walls, and
are called collenchyma cells.
* Some of the outer cortical cells may contain chloroplasts. Cortex forms
layer of cells that constitute cork.
* It is responsible for the transportation of materials into the central cylinder
of the root through diffusion and may also be used for food storage in the
form of starch.
* The innermost layer of the cortex is the endodermis.