Pollination (Grade 11 NSC Matric Life Sciences): Flashcards

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Pollination
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Pollination definition

Transfer of pollen from anther to stigma

Self-pollination

Pollen moves within same flower or between flowers on same plant

Cross-pollination

Pollen moves between different plants of same species

Why is cross-pollination important?

Creates genetic diversity for better survival & adaptation

What is nectar?

Sugar-rich liquid produced to attract pollinators

Insect-pollinated flower features

Large petals, bright colours, nectar, sticky pollen

Bird-pollinated flower features

Red/orange, larger, robust, dilute nectar, little scent

Wind-pollinated flower features

Small, inconspicuous, feathery stigmas, enormous light pollen

Stigma shape in wind-pollinated flowers

Long and feathery to catch airborne pollen

Pollen type: animal vs wind pollination

Animal: sticky, moderate. Wind: smooth, enormous amounts

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