Yolk - Wikipedia
Among animals which produce eggs, the yolk is the nutrient-bearing portion of the egg whose primary function is to supply food for the development of the embryo. Some types of egg contain no yolk, for example because they are laid in situations where the food supply is sufficient (such as in the body of the host of a parasitoid) or because the embryo develops in th… See more
Yolk sac - Wikipedia
The yolk sac is a membranous sac attached to an embryo, formed by cells of the hypoblast layer of the bilaminar embryonic disc. This is alternatively called the umbilical vesicle by the Terminologia Embryologica (TE), though yolk sac is far more widely used. In humans, the yolk sac is important in early embryonic blood supply, and much of it is incorporated into the primordial gut during the fourth w…
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Yolk Definition & Meaning - Merriam-Webster
The meaning of YOLK is the yellow spheroidal mass of stored food that forms the inner portion of the egg of a bird or reptile and is surrounded by the white.
Eggs as food - Wikipedia
The yolk of the eggs have not yet fully solidified. Eggs contain multiple proteins that gel at different temperatures within the yolk and the white, and the …
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Yolk - Simple English Wikipedia, the free encyclopedia
The yolk is the yellow center of an egg. It is only one cell. It is commonly seen in fried eggs. When it is mixed with the whites, it makes scrambled eggs. It is sometimes used in cooking. It is …
Yolk | Development, Nutrition & Formation | Britannica
yolk, the nutritive material of an egg, used as food by a developing, embryonic animal. Eggs with relatively little, uniformly distributed yolk are termed isolecithal. This condition occurs in invertebrates and in all but the lowest mammals.
yolk - Wiktionary, the free dictionary
Oct 9, 2024 · yolk (countable and uncountable, plural yolks) The yellow, spherical part of an egg that is surrounded by the white albumen, and serves as nutriment for the growing young. …
Egg - Wikipedia
The yolk is concentrated in one part of the egg (the vegetal pole), with the cell nucleus and most of the cytoplasm in the other (the animal pole). The cell cleavage is uneven, and mainly concentrated in the cytoplasma-rich animal pole.
Origin and function of the yolk sac in primate embryogenesis
Jul 28, 2020 · We discuss the intricate relationship between the yolk sac and the primate embryo and highlight the pivotal role of the yolk sac as a multifunctional hub for haematopoiesis, germ …
Yolk - WikiMili, The Best Wikipedia Reader
Among animals which produce eggs, the yolk (/ ˈ j oʊ k /; also known as the vitellus) is the nutrient-bearing portion of the egg whose primary function is to supply food for the …