Sexual Reproduction In Plants Flashcards
What is the female part of flowering plants called?
The carpel
What does the stamen consist of ?
The anther and
The filament
What does the anther contain?
It contains pollen grains which produce the male gametes
What is the filament ?
The stalk that supports the anther
What does the carpel consist of?
The ovary
The style
And the stigma
What is the style
The rodlike section that supports the stigma
What does the Ovary contain?
The female gametes inside ovules
What is the stigma?
The end bit that pollen grains attach to
What is pollination ?
The transfer of pollen from anther to stigma, so that the male gamete can fertilise the female gametes in sexual reproduction.
What is the name of the process that involves the transfer of pollen from an anther in one plant to the stigma in another plant ?
Cross-pollination
plants that cross pollinate rely on the wind and insects
What are the two ways that plants can be adapted ?
Adapted for wind pollination
Adapted for insect pollination
Give 4 ways plants can be adapted for insect pollination
By having Brightly coloured petals , to attract insects
By having Scented flowers and nectaries , to attract insects
By making big, sticky pollen grains , so the grains will stick to the insect
By having a sticky stigma so pollen picked up by insects from other plants will stick to the sigma
What is the male reproductive part in flowering plants called?
Stamen
Give 5 ways plants are adapted for wind pollination
They have small , dull petals
They have no strong scents or nectaries
They have lots of small and light pollen grains
The filaments hang the anthers outside the flowers so pollen gets blown away by the wind
They have a feathery stigma to catch pollen as it is carried past by the wind
