what is the function of plumule,endosperm and ra
dicle in monocot seed
Answers
Answer:In angiosperms, the process of seed production begins with double fertilization while in gymnosperms it does not.
In both monocots and dicots, food reserves are stored in the endosperm; however, in non-endospermic dicots, the cotyledons act as the storage.
In a seed, the embryo consists of three main parts: the plumule, the radicle, and the hypocotyl.
In dicots, the hypocotyls extend above ground, giving rise to the stem of the plant, while in monocots, they remain below ground.
In dicot seeds, the radicle grows downwards to form the tap root while lateral roots branch off to all sides, producing a dicot tap root system; in contrast, the end of germination in monocot seeds is marked by the production of a fibrous root system where adventitious roots emerge from the stem.
Seed germination is dependent on seed size and whether or not favorable conditions are present.
Explanation:
testa: the seed coat
radicle: the rudimentary shoot of a plant that supports the cotyledons in the seed and from which the root is developed downward; the root of the embryo
hypocotyl: in plants with seeds, the portion of the embryo or seedling between the root and cotyledons
plumule: consisting of the apical meristem and the first true leaves of the young plant
coleoptile: a pointed sheath that protects the emerging shoot in monocotyledons such as oats and grasses