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Q.
The region between the base of coleoptile and cotyledonary node in monocot seed is called
NTA AbhyasNTA Abhyas 2020
Solution:
Structure of monocot seed contains following structures.
Pericarp: It is also known as the fruit wall. The fruit wall is fused with the seed coat, and this type of fruit is known as a caryopsis.
Scutellum:-They have a single cotyledon called scutellum. The main function of it is to provide nourishment to the developing embryo.
Radicle, coleorhiza, plumule and coleoptile are present on the same axis called tigellum.
Coleoptile-It is the protective sheath present around the plumule that later forms the root upon germination. It guards the plumule against any damage and also provides nourishment.
Epicotyl is the region between the base of coleoptile and cotyledonary node. It develops into the leaves of the plants on germination.
Endosperm:- The endosperm is the nutrient storage tissue, used up by the embryo to develop the scutellum. Aleurone is a proteinaceous layer that surrounds the endosperm of maize.
Coleorhiza:-It is the protective sheath present around the radicle that later forms the root upon germination. Coleorhiza guards the radicle against any damage and also provides nourishment