Exocarp

Definition

The exocarp is the outermost layer of the pericarp, which is the part of a fruit formed from the ovary wall. It serves as a protective layer for the fruit and can vary in texture and thickness.

5 Must Know Facts For Your Next Test

1. The exocarp is also known as the epicarp.
2. It is one of three layers that make up the pericarp, along with the mesocarp and endocarp.
3. In some fruits, such as peaches, the exocarp is thin and edible, while in others like oranges, it is thicker and more protective.
4. The texture of the exocarp can range from smooth to hairy or waxy depending on the fruit type.
5. The development of the exocarp is influenced by genetic factors and environmental conditions.

Review Questions

Related terms

mesocarp:

The middle layer of the pericarp, often fleshy in fruits like peaches and tomatoes.

endocarp:

The innermost layer of the pericarp, which directly surrounds the seeds.

pericarp:

The part of a fruit formed from the ovary wall, consisting of three layers: exocarp, mesocarp, and endocarp.