The Egg Structure Flashcards
1
Q
what do eggs provide?
A
an environment & nutrient for the developing embryo
2
Q
what are the components of the egg?
A
yolk, albumen, air cell, chalaza, inner & outer shell membranes, shell.
3
Q
whats the function of the shell?
A
- protects developing chick from damage and stops unwanted substances entering shell.
- allows gas exchange as its semi permeable
4
Q
whats the function of the inner & outer shell membranes?
A
- defence against invading bacteria.
5
Q
whats the function of the chalaza?
A
- holds yolk in the egg white.
6
Q
whats the air cell in the egg?
A
-the gap between the shell membranes.
7
Q
what does the albumen contain?
A
-different proteins.
8
Q
whats the function of the yolk?
A
- provides food & nutrition for developing embryo.
9
Q
whats the albumen?
A
egg white.
10
Q
whats the yolk?
A
yellow part of the egg.
11
Q
whats the shell made of?
A
calcium carbonate.
12
Q
whats the inner & outer shell membranes made of?
A
proteins.
13
Q
describe the chalaza.
A
spiral strand.
