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Life cycle of a plant, cells - Coggle Diagram
Life cycle of a plant
Two types of seeds
Dicot - Two cotyledons
Monocot - One cotyledon
two structures
Radicle - root like structure
Plumule - shoot like structure
Embryo - Plumule +radicle
GERMINATION
At optimum/favourable conditions - water, soil and temperature
Reproductive organs in flowers
male reproductive organs
in the anthers
produce pollen grains
male gametophytes
the structure that
contains the gametes (sex cells)
pollen grain has 2 nuclei
The female gametophyte
7 cells
1 egg cell
2 synergids
3 antipodals
8 nuclei
1 in egg cell,
1 each synergids,
1 each antipodals
2 in central cell
cells
Egg cell
female gamete
Synergids
help in guiding the pollen tube towards the egg cell
Antipodals
nourishment to the egg cell
Central cell
develops to form endosperm that will give nutrition to the embryo