Events after fertilisation
Ovule
develops into
Seed
with
Embryo
from
Zygote (fertilised egg-cell)
with
Radicle
Primordial root
Plumule
Primordial shoot
Cotyledons
Primordial leaves
Number
1
Monocots
2
Dicots
Functions
As food storage
Photosynthesis
Endosperm
from
Central triploid cell
to
Uninucleated cells
Polynucleated cells
Nutrients fed in
by phloem
starch, oils, proteins...
Integuments = Seedcoat
Resists harsh environmental conditions
Water taken out
by xylem
Enzymes are inactivated
Seed goes dormant
Ovary
develops into
Fruit
Helps protect seeds
Helps disperse seeds
What for
Avoiding competition for resources
With parent plant
Between siblings
How
By wind
Propels seeds away
Poppy
Has wings
Maple
Has hairs
Dandelion
By animals
Fleshy
Peach, mango
Seed with hard testa to prevent being digested
Spiny
Tribulus terrestris, cocklebur
Stick to animals' skin or fur
Nuts
Acorn, hazelnut
Hidden and forgotten by rodents
