Lesson 4 of 6
Seeds and fruits
Goal: Describe how seeds and fruits form.
After fertilisation, each fertilised ovule becomes a seed and the ovary becomes the fruit.
- A fruit is what the ovary becomes. It contains the seeds. A tomato is a fruit, and so is a pea pod.
- The petals and stamens wither and fall off. Their job is done.
- A seed has three parts: an embryo that grows into the new plant, a food store and a tough seed coat.
A bean seed cut in half. The young shoot and the young root are parts of the embryo.
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Key words in this lesson
Stamen The male part of a flower: an anther on a filament
Ovary Holds the ovules, and becomes the fruit
Ovule Contains a female sex cell. If it is fertilised, it becomes a seed
Petal Often bright and scented, to attract insects
Fertilisation The joining of a male nucleus and a female nucleus
Seed Contains the embryo of a new plant and a food store
Embryo The young plant inside a seed
Fruit What the ovary becomes after fertilisation