L.S. of a grass (monocot) embryoघास (एकबीजपत्री) भ्रूण की अनुदैर्ध्य काट

NCERT Fig 1.14b · Class 12 Biology · Chapter 1 · interactive diagram

Parts and their functions

• Scutellum (स्कूटेलम (प्रशल्क)) — The single cotyledon of the grass family; situated towards one side (lateral) of the embryonal axis.
• Coleoptile (प्रांकुर चोल) — Hollow foliar structure that encloses the shoot apex and a few leaf primordia.
• Shoot apex (+ leaf primordia) (प्ररोह शीर्ष) — Growing tip of the future shoot, inside the coleoptile.
• Epicotyl (बीजपत्रोपरिक) — Part of the embryonal axis above the level of attachment of the scutellum.
• Epiblast (एपिब्लास्ट) — A small outgrowth on the embryonal axis, opposite the scutellum (shown in the grass embryo).
• Radicle (मूलांकुर) — Embryonic root, at the lower end of the axis.
• Root cap (मूल गोप) — Protects the radicle tip.
• Coleorrhiza (मूलांकुर चोल) — Undifferentiated sheath that encloses the radicle and root cap.

Original diagram drawn by Simple Learning Hub, based on NCERT Fig 1.14b. Report a mistake