105578
Beschreibung
Mindmap von jamesjames456, aktualisiert more than 1 year ago
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Erstellt von jamesjames456
vor mehr als 11 Jahre
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Pollination and Fertilisation
- Flowers have male and female gametes
- Male (stamen
- Anther
- contains pollen grains
that produce sperm
- contains pollen grains
that produce sperm
- Filament
- The stalk that supports the Anther
- The stalk that supports the Anther
- Anther
- Female (carpel)
- Stigma
- End bit that pollen
grains stick to
- End bit that pollen
grains stick to
- Style
- Rod-like section that supports the stigma
- Rod-like section that supports the stigma
- Ovary
- Contains the eggs
- Contains the eggs
- Stigma
- Male (stamen
- Pollination is the transfer of pollen
from the Anther to the Stigma
- Cross pollination is from
one plant to another
- Sexually pollinating plants rely
on insects or the wind
- Insect pollinators
- Have large,
bright petals
- Scented, and
have nectar glands
- Big, sticky pollen
grains that stick to
the insect
- Stigma is also sticky
making the pollen
easily attachable
- Have large,
bright petals
- Wind pollinators
- Small, dull petals
- Not scented, and no nectar glands
- A lot of pollen
- Small and light, easily carried by the wind
- Small and light, easily carried by the wind
- Long filament - Anther
hangs outside the flower
- More pollen can be carried by the wind
- More pollen can be carried by the wind
- Large, feathery stigma that
also hangs out the flower
- Small, dull petals
- Insect pollinators
- Cross pollination is from
one plant to another
- Fertilisation
- The fusion of gametes
- When the male gamete lands on
the plant, it inserts a pollen tube
and the nucleus travels to the ovary
- Fertilisation is when the
two nuclei fuse together
to make a zygote
- This divides by mitosis
to form an embryo
- Each fertilised female gamete
forms a seed. The ovary develops
into a fruit around the seed
- This divides by mitosis
to form an embryo
- Fertilisation is when the
two nuclei fuse together
to make a zygote
- The fusion of gametes
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