Flowers and pollination Flashcards
If pollen from a flower pollinates a different flower we call it…
cross pollination
What is the function of the anther?
it produces pollen
Why are flower petals usually bright colours?
To attract insects/pollinators to them.
The female reproductive parts of a flower are called the…
carpel
What is the function of the style?
It holds up the stigma
Name the two methods by which plants can be pollinated.
By wind
By insects/animals
If pollen from a flower pollinates its own stigma we call it…
self pollination
When pollen is transferred to the stigma it is called…
Pollination
What is the female gamete in a flowering plant?
Ovules
Describe the flowers of wind-pollinated plants.
Small dull petals.
No nectar.
Large amounts of pollen made.
Pollen is very light.
Anthers dangle out of plant to make easy for pollen to escape.
Stigma hangs out of plant so can catch pollen easier.
Describe the flowers of a plant that is fertilised by insects.
Brightly coloured, sweet smelling petals to attract insects.
Some flowers make nectar which bees use to make honey.
Small amounts of pollen are produced.
Pollen is spiky so sticks to insects.
Anther and stigmas are held firmly in flowers so insects can rub against them.
Stigma has a sticky coating, so pollen sticks to it.
What is the male gamete in a flowering plant?
Pollen
What is the function of the stigma?
It is the sticky part of the carpel that catches grains of pollen.
The male reproductive parts of a flower are called the…
stamen
What is the function of the filament?
It holds up the anther.
