embryo sac
the female gametophyte of antiospermous plants, within the embryo begins development
Source: Noland, George B. 1983. General Biology, 11th Edition. St. Louis, MO. C. V. Mosby ...
embryo sac Alternate term applied to the angiosperm female gametophyte contained within a megaspore. PICTURE
emphysema Lung disease characterized by shortness of breath, often associated with smoking.
embryo sac
The female gametophyte of angiosperms, formed from the growth and division of the megaspore into a multicellular structure with eight haploid nuclei.
enantiomer ...
embryo sac Female gametophyte of angiosperms; it is retained within the ovule.
In the flowering plants, the female gametophyte, which usually gives rise to the archegonium, has been reduced to just eight cells referred to as the embryo sac inside the ovule.
Once the tip of the tube reaches the micropyle end of the embryo sac, the tube grows through into the embryo sac through one of the synergids which flank the egg.
In corn, and probably other angiosperms, they secrete a sperm attractant which guides the sperm through the micropyle into the embryo sac.
 See also: Embryo, Plant, Cells, Sperm, Tissue
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