Page 138 - Science Course 1 (Book 1)
P. 138
Mo4-L5a: How Do Plant Types Differ?
New
In seedless plants, spores are produced by the Growth Resting
sporophyte. Period
New
Pseudobulb
New Flower
spike
Blooming
Seed plants produce pollen grains, which contain
sperm, and female structures, which contain one or
more eggs.
Most flowers have four main structures: petals,
sepals, pistil, and stamen.
The process that occurs when pollen grains land on
a female plant structure of a plant of the same The petals might be brightly colored to attract insect
species is pollination.
or animal pollinators.
If a sperm from a pollen grain joins with an egg, this The sepals are usually located beneath the petals
is called fertilization.
and help protect the flower when it is a bud.
One part of the flower Another part of the
called the “Anther“ flower, called the
makes pollen. “Pistil“ leads to the
egg.
The embryo is the beginning of the sporophyte stage
of seed plants.
The embryo and its food supply are enclosed within
a protective coat, forming a seed.
The female reproductive organ of a flower is the
In most seed plants, the seed will go through pistil.
dormancy, which is a period of no growth.
The stamen is the male reproductive organ of at
flower.
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