Question

Monocotyledonous/ wheat seed has one large shield - shaped cotyledon known as

• A. Coleoptile
• B. Scutellum
• C. Aleurone layer
• D. Coleorhiza

Answer 1

Answer: (B)

Scutellum

Coleoptile is a sheath protecting a young shoot top in monocotyledons such as grasses. They have two vascular bundles, one on either side.

The scutellum is part of the structure of a barley and rice seed- the modified seed leaf. It is the large shield shaped cotyledon.

Aleurone layer is the outermost proteinaceous layer of endosperm, followed by the inner starchy endosperm. It lies between the pericarp and the hyaline layer of the endosperm.

Coleorhiza is a sheath protecting the root of germinating monocots. It connects coleoptile with primary root and is a protective covering enclosing the radicle.

So, the correct answer is 'Scutellum'