AP BIOLOGY

Detailed explanation-1: -A monocotyledonous seed has embryos that possess only one large cotyledon called scutellum. Generally, the scutellum is shaped like a shield. It is located laterally towards the side of the embryo axis. Like dicotyledons, the embryo axis of monocotyledons possesses a shoot tip called the plumule.

Detailed explanation-2: -Scutellum is the single modified cotyledon of a monocot seed.

Detailed explanation-3: -Monocotyledons. Angiosperms or flowering plants having only one embryonic leaf or cotyledon are known as monocotyledons or monocots. Examples: grasses, wheat, maize, orchids, etc.

Detailed explanation-4: -Physical characteristics. Monocot plants are marked by seeds with a single cotyledon, parallel-veined leaves, scattered vascular bundles in the stem, the absence of a typical cambium, and an adventitious root system.

Detailed explanation-5: -The cotyledon of grasses and many other monocotyledons is a highly modified leaf composed of a scutellum and a coleoptile. The scutellum is a tissue within the seed that is specialized to absorb stored food from the adjacent endosperm.