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Plant reproduction - Coggle Diagram
Plant reproduction
How do non-flowering plants reproduce ?
non - flowering plants such as ferns and mosses do not produce seeds and usually reproduce from spores
spores are found in spore bags located on the underside of mature leaves
besides sexual reproduction , some plants can also reproduce without fertilisation ( asexual reproductive )
spores are found in spore bags located at the ends of stalks
spores are tiny and can only be examined under a microscope
spores are generally dispersed by the wind because they are light
like seeds , spores will germinate and grow into new plants when conditions are favourable
underground stem
leaves are not green. They can be scaly or fleshy
it has buds and leaves or leaf scars
sucker
it is a shoot that grows from a small bud
the buds are found at the base of the stem of the parent plant
Structure Of A Flower
A flower helps flowering plants to produce seed, so its
Female part
ovary
protects the ovule
becomes fruits after fertilisation has taken space
style
connects the stigma to the ovary
stigma
receives pollen grains
ovule
become the seed after fertilisation
male parts
anther
produces pollen grains
stores them in pollen sacs
filament
hold the anther up
Not Male and Not Female
flower stalk
Hold the flower up so that it can be easyily detected by polinator
petal
attracts pollinators such as birds and insects to the flower
Flowers
Both Male & Female parts
Only Male or Only Female parts
How do plants reproduce ?
plant can carry out reproduction in ways, such as :
seeds
spores
other plant parts
remember ? :
plants reproduce to ensure the survival and continuity of their own kind
plants parts such as flowers , are involved in sexual reproduction they are called reproductive structures
good to know
plants such as roots , stems and leaves , can be involved in an asexual reproduction , and they are called vegetative structures
How Do Flowering Plant Reproduce?
There are FOUR PROCESSE in the life cycle of a flower plant
2 - the female reproductive cells found in ovules are fertilised by the male reproductive cells found in pollen grains
3 - After fertilisation , the flower develop into a fruit containing seeds that are dispersed
4 - the seed germinate to produce new plants which grow and mature into adult plant
1 - adult plants produce flower that are pollinated
pollinations occurs when pollen grains are transferred from the anther of one flower to the stigma.
same kind
same flower
another flower
birds, insects or wind help in the tranfer of pollen grains
Wind pollinated
Characteristic
stigma
feathery
in order to catch pollen grains floating in the air
large
flower
dull coloured
no scent
small
anther
hanging out of the flower
so that pollen grains can be shaken off easily
so that the pollen grain can be carried out by the wind
Examples
grass
pine
Animal pollinated
Characteristic
flowers
large
brightly coloured
scented
To attract animal pollinators
anther
do not hang out of the flowers
stigma
Examples