Skill:
• Drawing internal structure of seeds
When fertilisation occurs, the ovule will develop into a seed (which may be contained within a fruit)
- The seed will be dispersed from the parental plant and will then germinate, giving rise to a new plant
A typical seed will possess the following features:
- Testa – an outer seed coat that protects the embryonic plant
- Micropyle – a small pore in the outer covering of the seed, that allows for the passage of water
- Cotyledon – contains the food stores for the seed and forms the embryonic leaves
- Plumule – the embryonic shoot (also called the epicotyl)
- Radicle – the embryonic root
Internal Structure of a Seed
