Egg - Structure of the egg

11 important questions on Egg - Structure of the egg

What are the four components of the egg?

Yolk, egg white (albumen), shell membranes and shell

What is a nidicolous animal?

An animal that stays at it birthplace for a longer time - nestblijver

What is a nidifugous animal?

An animal that leave the nest shortly after hatching or birth - nestvlieder
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What is the average size of a cross-section of an egg yolk of a chicken egg?

3 cm

What is the name of the yolk bag?

Vitelline membrane

What are attached to the vitelline membrane?

Chalazas/chalazae

What are the two main functions of the egg white?

Nutrition and protection

What kinds of mechanical protection does the egg white provide to the yolk?

Cushions impact and insulates

What kind of chemical protection does the egg white provide to the yolk?

Certain substances in the egg white have an antibacterial effect

What are the four layers of the egg white?

  1. Outermost layer of thin white - 23%
  2. Outermost layer of thick white - 57%
  3. Innermost layer of thin white - 17%
  4. Innermost layer of thick white - 3%

What is the total thickness of the shell?

Approximately 0.35 mm

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