Pollination

Anything from the trcuture of flowers, decribing what they do, and how they pollinate.

HideShow resource information

Structure of a flower

filament - male part which holds up anther

anther - produces pollen (male gamete)

Stamen - male part containing the anther and filament

Petals - attract insects because they are colourful + bright

stigma - female part where pollen lands

ovary - produces ovules (female gametes)

nectary - produces sugary sap (nectar) to attract insects

Sepal - protects the UNOPENED flower

1 of 4

Types of pollination

pollination - is the transfer of pollen from the anther to the stigma. Can occur by insect or wind

cross pollination - transfer of pollen from the anther of one flower the stigma of another plant

self pollination - transfer of pollen from the anther of one flower the stigma of the same flower of the same plant

2 of 4

Wind pollination structures

petals - doesn't have any petals as it does not need to attract any insects

stigmas - hang out of flower and are feathary. They have a large surface area so they can catch onto pollen

stamens - hang out side the flower for more chance of pollen being carried by wind

pollen - grains and light and smooth to enable them to be carried through the air

nectar - no nectar as it does not need to attract insects

scent - no scent as it does not need to attract insects

3 of 4

Insect pollination structures

petals - bright and colourful to attract insects

stigmas - short and inside the flower

stamens - short and inside the flower

pollen - grains are sticky so they can stick to the insects body easily

nectar - produced in nectary to attract bess

scent - smells nice to attract bees

4 of 4

Comments

No comments have yet been made

Similar Biology resources:

See all Biology resources »See all resources »