Monocot seed

Monocot Seed – Description (Example: Maize grain) A monocot seed is single cotyledon bearing and usually endospermic (food-storing tissue present). In monocots like maize, the seed and fruit are fused together because the seed coat and fruit wall (pericarp) are inseparable. 🔹 Structure of a Monocot Seed: Seed Coat & Pericarp: Thin and fused together. Protects the seed from mechanical injury and desiccation. Endosperm: Large and occupies most of the seed. Rich in starch, acts as a food reserve for the embryo. Separated from the embryo by a protein-rich layer called the Aleurone layer. Embryo: Lies on one side of the endosperm and consists of: Scutellum: Single, shield-shaped cotyledon. Helps in absorption of food from endosperm during germination. Embryonal axis: Has two parts: Plumule: Future shoot, protected by a sheath called Coleoptile. Radicle: Future root, protected by a sheath called Coleorhiza. 🔸 Key Points: Number of cotyledons: One Endosperm: Present (endospermic seed) Food stored in: Endosperm Example: Maize, Rice, Wheat, Barley 🌾 Diagram (As per NCERT): Should include: Pericarp + Seed coat Endosperm Aleurone layer Scutellum Coleoptile Plumule Coleorhiza Radicle