Sagot :
Answer:
1. The yolk has a small white spot on it called the egg cell or germinal disc. This is the part of the egg from which the baby chick develops. The yolk provides food for the baby chick while it is growing in the shell. The albumen is the thick clear substance surrounding the yolk.
2. The albumen content of an egg plays an important role during embryonic development. Not only for formation of sub-embryonic fluid, but albumen proteins are known to flow into the amniotic cavity, the yolk sac and finally the digestive tract of the embryo and are used as the main source of proteins for tissue synthesis.