. Advanced biology. Biology; Physiology; Reproduction. FORMATION OF THE SEED AND FRUIT 279 In the grains, the endosperm is a well-developed, localized, and easily identified structure; in seeds such as beans, peas, and many nuts, the cotyledons possess the food supply for the devel- oping plant. While the embryo and endo- sperm are developing, the ovule coats absorb food from the ducts and develop into seed coats. The ripened ovule and its contents constitute the seed. The ovary ivall grows to accom- modate the developing seeds and forms the fruit. The fruit protects the seeds until they are c
. Advanced biology. Biology; Physiology; Reproduction. FORMATION OF THE SEED AND FRUIT 279 In the grains, the endosperm is a well-developed, localized, and easily identified structure; in seeds such as beans, peas, and many nuts, the cotyledons possess the food supply for the devel- oping plant. While the embryo and endo- sperm are developing, the ovule coats absorb food from the ducts and develop into seed coats. The ripened ovule and its contents constitute the seed. The ovary ivall grows to accom- modate the developing seeds and forms the fruit. The fruit protects the seeds until they are completely developed. Fruits are frequently adapted to disperse the ripe seeds. These seeds escape from the fruit, and the embryos they con- tain will develop into new plants, if they fall soil of proper temperature. The fruit is a ripened ovary and its contents, together with any other part of the plant that has ripened with it. When the bean seed is planted, it absorbs water, and sends a little arched shoot, the hypocotyl,- into the ground. The lower seed or radicle forms the root system. As the upper part or true hypocotyl straightens out, it brings the plumule above the ground. This forms the stem and leaves. The cotyledons feed the tiny plant until its leaves are able to make sufficient food to carry on the life process. The cotyledons may either remain under- groimd or be lifted into the air by the growth of the Given the proper conditions of moisture and warmth, a new plant will develop from the embryo on moist ^^ ^^^ seed. Which of the organs of the plants is developed from the hypocotyl ?. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Wheat, Frank Merrill; Fitzpatrick, Elizabeth T. New York ; Boston [etc. ] : American Book Company
Size: 1275px × 1960px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1920, booksubje, booksubjectphysiology
