The Seed
Question
The given figure shows L.S of the seed of maize. What do A, B, C and D represent?
| A | B | C | D | |
| 1. | Endosperm | Scutellum | Plumule | Coleoptile |
| 2. | Scutellum | Pericarp | Radicle | Coleoptile |
| 3. | Endosperm | Scutellum | Radicle | Coleorhiza |
| 4. | Scutellum | Pericarp | Plumule | Coleorhiza |
Easy
Solution
The outer covering of endosperm separates the embryo by a proteinous layer called aleurone layer. The embryo is small and situated in a groove at one end of the endosperm. It consists of one large and shield shaped cotyledon known as scutellum and a short axis with a plumule and a radicle. The plumule and radicle are enclosed in sheaths which are called coleoptile and coleorhiza respectively.
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