Question

State the role of placenta in the development of embryo.; (b) What happens when the egg is not fertilized?(All India - 2012)

Answer 1

Answer:

It provide food and nutrition from the mother.

when egg is not fertilized it form a semi liquid in the form of blood and come out as a waste from the body

Answer 2

Placenta plays a very important function in the development of the embryo.

1. The organ provides nutrients for the developing embryo.
2. It connects the fetus to the uterine wall for discharge of waste products.

• When an egg is not fertilized, the walls of the placenta shed, with heavy discharge of blood that clears itself out of the body of the woman in 3-5 days. The process starts at puberty and is called menstruation.