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The yolk of a chicken egg Diagram of a fish egg; the yolk is the area which is marked 'C'. 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 development of the embryo.
Separating eggs is a process, generally used in cooking, in which the egg yolk is removed from the egg white. This allows one part of the egg to be used without the other part, or each part to be treated in different ways. Recipes for custard call for egg yolks, for example. The most common reason for separating eggs is so the whites can be ...
The term is derived from the diminutive meaning "little egg". Oviparity is where fertilisation occurs internally and so the eggs laid by the female are zygotes (or newly developing embryos), often with important outer tissues added (for example, in a chicken egg, no part outside of the yolk originates with the zygote). Oviparity is typical of ...
Take a closer look at the pros and cons of eating whole eggs (yolk and all!) to find out what's behind egg's bad reputation and whether you're missing out on some key nutrients.
The egg yolk is suspended in the egg white by one or two spiral bands of tissue called the chalazae (from the Greek word χάλαζα, meaning 'hailstone' or 'hard lump'). The shape of a chicken egg resembles a prolate spheroid with one end larger than the other and has cylindrical symmetry along the long axis.
While egg whites deliver about half of an egg’s protein, Edgemon explains that the yolk provides the other half, along with most of the vitamins and minerals. So experts recommend using them in ...
"More than 20 years ago, researchers discovered there was a correlation between high blood cholesterol and eggs, which gave eggs a bad rap due to the cholesterol level of an egg yolk ...
The egg is cracked into a cup or bowl of any size, and then gently slid into a pan of water at approximately 62 °C (144 °F) and cooked until the egg white has mostly solidified, but the yolk remains soft. The ideal poached egg has a runny yolk, with a hardening crust and no raw white remaining.