science bio Flashcards
Name the reproductive organ of the plant?
The flower
Name the main parts of a flower(6)
Sepal,petal,stamen,anther,stigma,ovary,
What is pollination?
Movement of pollen from the anther of a plant to the stigma of another
Where is the pollen produced?
Anther
Where are the ovules produced in a flower ?
In the ovaries
What are the features of insect pollinated plants?
Large bright petals scented and with nectar, sticky or spiky pollen grains, anthers inside the flower stiff and firmly attached, stigma inside flower, sticky.
What are some features of wind pollinated plants?
Small petals, often dull, no scent or nectar, smooth and light pollen grains, anthers outside the flower loose on filaments, stigma outside the flower to easily catch flying pollen.
Why is insect pollination important?
Important for production of food crops
What happens in fertilisation in plants?
The pollen grain travels to the egg cell and fuses with it
After fertilization, what will the ovule become?
seed
What does seed dispersal mean?
The seeds spread from each other and from the parent plant.
Name the main methods of seed dispersal.
Wind, animals inside (fruits), animals outside (attached to fur), self-propelled
Why do seeds need to disperse away from the plant mother?
To reduce competition
What do plants compete for?
Light, water, minerals, space
What is germination?
The process by which an organism grows from a seed.
