Differentiate between perisperm and pericarp

Hint: Part of fruit structure associated with seed and fruit pulp, formed from remains of nucleus and walls of mature ovary.

Complete answer:
Fruits are formed from the mature ovary of a flower. The study of fruit anatomy gives us information about the different internal parts of a fruit. Perisperm is the nutritive material around the embryo sac seen in some seeds. Whereas, Pericarp is the fleshy part of the plant formed from the wall of the mature ovary. Pericarp forms the pulp of the fruit.


Additional Information:
- The formation of pericarp and perisperm is a part of the post-fertilization event in sexually reproducing plants.
- Post fertilization events in sexually reproducing plants include the development of endosperm and embryo, maturation of ovules into seeds, and maturation of ovary into a fruit.
- Seed formation can occur with or without fertilization.
- Apomixis: is the mechanism involved in the formation of seeds without fertilization, seen in angiosperms like grasses.
- Parthenocarpy is the development of seedless fruits without fertilization.
- Polyembryony is the presence of more than one embryo in a seed. Example of orange.
Note: In comparison to perisperm is an endosperm that unlike perisperm develops from the primary endosperm of a nucleus (PEN) and is usually in fluid form or soft. The endosperm contains reserved food materials. Example, seen as water in coconut, pea, and beans.