Seeds – Structure, Types and Germination – Notes

The Fruit and the Seeds

Once fertilisation takes place in a flower, the ovary ripens to form the fruit, while the ovules for the speeds.

A fruit, when formed without fertilisation of the ovary is called a parthencarpic fruit.

Typically, a fruit is made up two parts – the pericarp and the seeds.

A seed with two cotyledons is called dicotyledonous, and with a single cotyledon is called monocotyledonus.

In some seeds, the developing embryo is surrounded by a nutritive tissue called the endosperm, which stores food and helps the embryo grow.

Seeds with endosperm are called endosperm are called endospermic and those without are called non – endospermic.