# Compare the features of pollen grains from wind-pollinated flowers with pollen grains from insect-pollinated flowers.

> Cambridge International IGCSE Biology (0610) — 16.2 Sexual reproduction · Compare · 4 marks

## Mark scheme (4 marks)

1. Wind-pollinated pollen grains are smaller / lighter than insect-pollinated pollen grains (which are larger / heavier)
2. Wind-pollinated flowers produce greater numbers of pollen grains, whereas insect-pollinated flowers produce fewer
3. Wind-pollinated pollen grains have smooth surfaces (no spikes or hooks), whereas insect-pollinated pollen grains have spikes or hooks on the outside
4. Insect-pollinated pollen grains are sticky (to attach to insects / stigma), whereas wind-pollinated grains are not sticky

## Key terms

- [pollen grain](https://www.gradenine.co.uk/glossary/pollen-grain)
- [wind-pollinated](https://www.gradenine.co.uk/glossary/wind-pollinated)
- [insect-pollinated](https://www.gradenine.co.uk/glossary/insect-pollinated)

## Related

- [Revision notes for Cambridge International IGCSE Biology (0610)](https://www.gradenine.co.uk/learn)
- [How to answer "Compare" questions](https://www.gradenine.co.uk/tools/command-word-cheatsheet)
- [Practice this with AI marking (free)](https://www.gradenine.co.uk/start)

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Source: [GradeNine](https://www.gradenine.co.uk/q/compare-the-features-of-pollen-grains-031f3b5b) · Published by Druglandscape Ltd.