B5 Plant Reproduction Flashcards
These flash cards are on Plant reproduction. You need to be familiar with page 10-11 of 'Ard Facts.
Name the two parts of a flower’s stamen (‘male part’)
Filament and anther
Name the three parts of a flower’s carpel (‘female part’)
Ovary, style and stigma
Pollen is produced by the…
Anthers
In plants, pollen is transferred to a stigma during…
Pollination
For example, by insects or the wind.
In a flower pollen and ova and fuse, and seeds form in the…
Ovary
In plants, the nuclei of the pollen and ovum combine during…
Fertilisation
After seed formation the part of a flower that develops into a fruit is called the…
Ovary
For germination to take place does a seed need light?
No
Many seeds germinate underground!
Why do some plants produce brightly coloured flowers with sticky pollen?
To attract insects so that pollination takes place.
Describe three conditions required for seeds to germinate.
Water, oxygen and warmth
Why do seeds usually contain lots of starch or fat?
Growing seeds must respire to get energy.
They can’t make food yet, so they need a food store to get them started.
Suggest how pollination takes place in grass.
Grass makes lots of pollen that is blown by the wind onto the stigma of another grass plant.
Suggest how pollination takes place in dandelions.
Large yellow, smelly flowers attract insects which bring and carry pollen from other dandelion flowers.
Give three different methods that plants use to disperse their seeds.
Animal carriers, wind, water, exlosions.
Explain why effective seed dispersal is important to most plants.
Plants need space to grow so they need to travel.
Otherwise they will be competing with their parent plants for resources like light and water.
