Flowering-plant reproduction is a chain: a flower receives pollen, the pollen tube grows, fertilisation happens, and the seed and fruit develop. This hub follows that chain in four lessons.
It is part of the SPM Biology guide. For how plants are organised, see plant organisation and growth.
What does the cluster cover?
- Relating flower structures to roles: what each part does.
- Comparing pollination mechanisms: insect and wind pollinated flowers.
- Explaining double fertilisation: the two fusions inside the ovule.
- Tracing seed and fruit development: what each flower part becomes.
How do the skills connect?
The structures come first because every later step names them. Pollination brings pollen to the stigma, fertilisation follows, and development turns the result into a seed and a fruit.
Learn them in this order, because each stage needs the one before it.
One example: a pollen grain’s journey
Follow one pollen grain. It forms in an anther and lands on a stigma, then grows a tube down the style to an ovule in the ovary.
Inside the ovule, a male nucleus fuses with the egg cell, and the ovule later becomes a seed. That one grain has passed through every stage in this hub.
Where should you start?
If you cannot label the parts, begin with the first lesson. If you know the parts but mix up pollination and fertilisation, start with the third lesson and trace backwards.
Try the practice set when you finish. If the sequence still slips, online one-to-one Biology tuition lets you explain each step to a teacher.