Reproduction in Plants Flashcards
What is the male gamete in flowering plants?
Pollen
What is the female gamete in plants?
Ovule
Name the female gamete in plants.
Ovule
Name the male gamete in plants.
Pollen
Name 3 female parts of a flower
Style, ovary and stigma
Name 2 male parts of a flower
Anther and Filament
Give the definition of pollination
The transfer of pollen from an anther to a stigma, so that the male gametes can fertilize the female gametes in sexual reproduction.
Give the definition of cross-pollination.
A type of sexual reproduction in pants where pollen is transferred from the anther of one plant to the stigma of another.
Give 4 examples of plant adaptations for insect pollination.
Brightly colored petals to attract insects.
Scented flowers and nectaries to attract insects
Big sticky pollen grains to stick to insects as they go from plant to plant
Sticky stigma so any pollen picked up by insects will stick to the stigma
Give 5 examples of plant adaptation for wind pollination.
Light, small pollen grains- easily carried by wind.
Lots of pollen grains
Long filaments that hang outside of the flower. Stigma also hangs outside the flower.
Large feathery stigma to catch pollen as its carried past.
1. Parent 2. Root, grow 3. Clones
Describe the steps of asexual reproduction in plants
The parent plant sends out runners
The runners take root at various points and new plants start to grow
The new plants are clones of the parent strawberry plant.
Give the definition of runners
Fast growing stems that grow out sideways just above the ground.
Describe the steps of cloning plants artificially
Gardeners take cuttings from good parent plants and plant them to produce clones
These plants can be produced quickly and cheaply
- Pollen lands
- Pollen tube
- Fusion
- Fertilized ,seed
Describe plant fertilization
- A pollen grain lands on the stigma of a flower
- A pollen tube grows out of the pollen grain and down through the style to the ovary and into an ovule.
- A nucleus from the male gamete moves down the tube to join with the female gamete with the ovule.,
- Each fertilized female gamete forms a seed