Seeds

A seed is a fertilized ovule.

Parts of seed and their functions

• Embryo: This consists of the plumule, radicle and one or two cotyledons.

• Radicle: This develops into the true root of a plant.

• Plumule: This develops into the shoot of a plant.

• Cotyledon: This manufactures and store food for the seed.

• Testa: It is the hard outer covering of a seed. This protects the inner parts of the seed.

• Hilium: This is a scar found on the seed. It is the point of attachment of the seed to the ovary wall.

• Micropyle: This is a pore in a seed that allows water and air to get to the growing embryo.

• Endosperm: Food is stored in it.