Monocot Embryo Explained – Important CBSE Class 10 Science Notes

 

MONOCOT EMBRYO

• A monocot embryo is the embryonic stage of a monocotyledonous plant (plants with one cotyledon in the seed).

• Monocots include: Maize, Rice, Wheat, Grass, Banana, Lily, Palm.

Structure

• Single Cotyledon:

• Called scutellum (in grasses like maize, wheat, etc.).

• Positioned on one side of the embryonic axis.

• Embryonic Axis:

• Has plumule (future shoot).

• Radicle (future root).

• Protective Sheaths:

• Coleoptile: Protective sheath covering the plumule.

• Coleorhiza: Protective sheath covering the radicle.

Components of Monocot Embryo

Component	Description
Scutellum-	Single large cotyledon; absorbs nutrients from endosperm.
Plumule-	Gives rise to the shoot system.
Radicle-	Gives rise to the root system.
Coleoptile-	Covers and protects the plumule.
Coleorhiza-	Covers and protects the radicle.
Epiblast-	Rudimentary second cotyledon; small outgrowth near scutellum.