NEETBotanyMorphology of Flowering Plants
Match List-I with List-II regarding the structure of a monocotyledonous seed. List-I List-II A. Aleurone layer I. Shield shaped cotyledon B. Scutellum II. Proteinaceous covering of endosperm C. Coleoptile III. Sheath enclosing radicle D. Coleorhiza IV. Sheath enclosing plumule Choose the correct answer from the options given below:
Options
- AA-I, B-II, C-III, D-IV
- BA-II, B-I, C-III, D-IV
- CA-I, B-II, C-IV, D-III
- DA-II, B-I, C-IV, D-III
Correct answer
D. A-II, B-I, C-IV, D-III
Step-by-step solution
In a monocotyledonous seed (like maize), the outer covering of endosperm separates the embryo by a proteinaceous layer called the aleurone layer (A-II). The embryo consists of one large and shield-shaped cotyledon known as scutellum (B-I). The plumule and radicle are enclosed in sheaths which are called coleoptile (C-IV) and coleorhiza (D-III) respectively. Answer: A-II, B-I, C-IV, D-III