Inside an angiosperm seed, the embryonic form of the shoot is called the __.

Expert Solution

The seed of angiosperms are somewhat different from those of gymnosperm In angiosperm the food source for the seed is derived (in a process called double fertilization) from a triploid nucleus that is formed during fertilization alongside the creation of the zygote The triploid nucleus gives rise to a starchy substance called endosperm which nourishes the developing embryo and in dicots the seedling Angiosperm seed which develop from ovules are also distinguished from gymnosperm seed because they are enclosed in protective ovaries These ovaries which are derived from carpels (modified leaves) on the flower develop into fruit after fertilization The fruit provides added protection against desiccation of the embryo and aids in its dispersal by wind and animals

As the angiosperm seed develops so do the cotyledons or seed leaves monocot embryos have one cotyledon while dicot embryos have two At the some time embryonic shoot and root develop as well taken together they are called the embryonic axis The part of the embryonic axis located above the point of attachment of the cotyledon is called the epicotyl and is destined to become the shoot The embryonic axis below the cotyledon attachment site is called the hypocotyl and is the progenitor of the root

gladiator answered 4 months ago

describe the process from flower , to fruit to seed Compare and contrast gymnosperm with angiosperm

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