7 – To Investigate and Compare the Structures of Insect-Pollinated and Wind-Pollinated Plants (LC 2027) (Leaving Cert Biology): Flashcards
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Structural differences studied in this investigation
Structural differences studied in this investigation
Between insect-pollinated & wind-pollinated flowers
How wind-pollinated flowers transport pollen
How wind-pollinated flowers transport pollen
Release pollen into air, rely on wind currents
Examples of wind-pollinated trees
Examples of wind-pollinated trees
Hazel, alder, birch, oak, poplar
Why wind-pollinated plants produce enormous pollen amounts
Why wind-pollinated plants produce enormous pollen amounts
Low chance of any grain reaching compatible stigma
Mutual relationship in insect-pollinated flowers
Mutual relationship in insect-pollinated flowers
Flower provides nectar & pollen; insect provides pollination
Petal size in wind-pollinated flowers
Petal size in wind-pollinated flowers
Small, inconspicuous or absent
Stamen position in wind-pollinated flowers
Stamen position in wind-pollinated flowers
Exposed, hang outside the flower
Pollen characteristics in wind-pollinated flowers
Pollen characteristics in wind-pollinated flowers
Light, dry, large amounts
Stigma structure in wind-pollinated flowers
Stigma structure in wind-pollinated flowers
Feathery or branched to catch airborne pollen
Nectar in wind-pollinated flowers
Nectar in wind-pollinated flowers
Absent
Petal colour in insect-pollinated flowers
Petal colour in insect-pollinated flowers
Brightly coloured to attract pollinators
Purpose of nectar in insect-pollinated flowers
Purpose of nectar in insect-pollinated flowers
Reward visiting insects
Pollen characteristics in insect-pollinated flowers
Pollen characteristics in insect-pollinated flowers
Sticky, heavy, adheres to insect bodies
Male reproductive parts of a flower
Male reproductive parts of a flower
Stamens
Female reproductive part of a flower
Female reproductive part of a flower
Carpel
