Anatomy Of An Egg

At their core all eggs are either white or blue. The shell is mostly made of calcium carbonate with small amounts of magnesium carbonate calcium phosphate and protein.

The Female Reproductive System Along Comes The Egg Pet

Yolk membrane vitelline membrane.

Anatomy of an egg. Discover the science behind egg color and what makes eggs all the shades we see. Formed at the wide end of the egg as it cools after being laid. Albumen is the egg white and represents 23 of an eggs weight.

These include iron vitamin a vitamin d phosphorus calcium thiamine and riboflavin. An egg is the equivalent of uterus and placenta it contains everything needed to make a new bird or reptile. This helps to keep out dust and bacteria.

Every egg has a clear cuticle or bloom that coats the egg immediately as it leaves the chickens body. The shell along with the bloom is the eggs best line of defense against contamination from bacteria and germs. As it cools the contents contract and the inner shell membrane separates from the outer shell membrane to form the air cell see 14 below.

These membranes form a second barrier to prevent bacteria from entering the egg. The outer membrane sticks to the egg shell while the inner membrane sticks to the albumen. The eggs first line of defence against the entry of bacteria.

At their core all chicken eggs are white or blue. When an egg is first laid it is warm. The yolk contains less water and more protein than the white some fat and most of the vitamins and minerals of the egg.

The yolk is also a source of lecithin an effective emulsifier. Anatomy of the egg shell. Immediately inside the egg are two membranes called the inner and outer membranes.

Theory Of Eggs Online Pastry Classes School Of