Multicellular Organisms: Seeds & Sexyal Propagation Flashcards
What’s in a seed structure
An embryo ( Root & shoot )
Food store
Seed coat
This the function of the seed structure what is it called?
Protects the internal structure of the seed
Seed coat
This the function of the seed structure what is it called?
Provides a store a starchy food which gives the new plant energy grow
Food store
This the function of the seed structure what is it called
Consists of the young shoot and root. Grows into the adult plant
Embryo shoot and root
Methods of seed dispersal are
Animal internal ( fruit production )
Animal external
Water
Wind dispersal
Explosion/propulsion
What do fruits do to attract animals
Brightly coloured nutritious and tasty
What fruits are eaten
Cherries blueberry kiwis black berry
What is Animal external
Another method of seed dispersal is animal external. This method used dry or sticky fruit/ seed which can attach or cling to animals passing be the seeds can be carried by the animal and drop off ( or removed further away)
Plants that are animal external
Burdock, sea holly, woodaven
Wind dispersal is
Down lighter seeds have specialised structure that allow them to be picked up by the wind and spread to a different area where they CNA grow without competition
Wind dispersal examples
Dandelion sycamore
What is explosion/ propulsion
It’s explosive pressure is generated within the seed pod allowing the seeds to shoot dar from the parent plant without relying on animals or other factors
Example of Exoplosioj/propulsion
Squirting cucumber
What is Water dispersal
Some plants ( usually living near a source of water) drop their seeds into the water Which then float away
Example if water dispersal
Coconuts
