Pollination Simplified Revision Notes for Leaving Cert Biology

Revision notes with simplified explanations to understand Pollination quickly and effectively.

Learn about Sexual Reproduction in Flowering Plants for your Leaving Cert Biology Exam. This Revision Note includes a summary of Sexual Reproduction in Flowering Plants for easy recall in your Biology exam

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Pollination

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Pollination is the transfer of pollen from an anther to a stigma of a flower from the same species.

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Self pollination means the anther and the carpel are on the same plant. This leads to self fertilisation, which produces offspring that are weaker.

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Cross pollination means that the anther and carpel are on different plants. This leads to cross fertilisation which produces stronger and healthier offspring.

Methods of Cross Pollination

Wind
Animal (including insects) | Feature | Wind Pollination | Animal/Insect Pollination | |---|---|---| | Petals | • Small
• Green
• No scent
• Nectar | • Large
• Coloured
• Scented
• Nectar | | Pollen | • Huge amounts
• Small
• Light | • Smaller amounts
• Large
• Sticky | | Anthers | • Large
• Outside petals | • Smaller
• Inside petals | | Stigmas | • Large
• Feathery
• Outside petals | • Smaller
• Rounded
• Inside petals | | Examples | • Grasses
• Conifers
• Oak | • Daisies
• Buttercups
• Primroses |

A = animal/insect pollinated flower

B = wind pollinated flower

Hay Fever

Hay fever is caused by a reaction to pollen grains.
Symptoms include sneezing, blocked and runny nose, watery and irritated eyes.
Treatments include;
- Antihistamines to reduce inflammation.
- Decongestant drugs to clear the nose.

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