Protection of seed from external damage
People also ask
What is the seed coat?
Seed coat: Seed coat is the outer covering of the seed which protects the seed (embryo and endosperm) from injury and attack of bacteria, fungi, and insects. Is there an error in this question or solution?
What is the function of the outer layer of a seed?
The outer layer is thick and known as the testa. The inner layer is thin and known as tegmen. A thick seed coat protects the seed from sunlight and water. It prevents the loss of water and entry of parasites within the seeds.
How does the seed coat maintain dormancy?
By regulating the amount of water entering and leaving the seed, as well as gas exchange, the seed coat maintains the embryo in a napping state called dormancy. Dormancy is only broken when the seed’s environment has adequate temperature, water, and gas exchange to promote growth.
What is the function of the endosperm of a seed?
The endosperm is the food storage area of the seed. The purpose of the seed coat is to protect the seed from physical, temperature-related, or water damage. The seed coat also ensures that the plant seed remain in a state of dormancy until conditions are right for the plant embryo to germinate, or sprout.