Page 147 - Science Course 1 (Book 1)

Mo4-L6c: How Do Gymnosperms and Angiosperms Reproduce?

Adult
confiner
Young
Seedling Female
cone with
ovule

Male with
pollen
Pinus Gnetum

Cycas Pine seed pollen
(with wing) Pollination

Diploid Sperm
zygote
Ovule

Fertilization

Flowering seed plants are called angiosperms. The male reproductive organ of a flower is the
stamen.
Reproduction of an angiosperm begins in a flower,
most of which have male and female reproductive Pollen grains form at the tip of the stamen
structures in the anther.

The female reproductive organ of a flower is the
pistil.

Pollen can land at the tip of the pistil, or stigma.
The ovary is at the base of the style. It contains
one or more ovules
Sunflower Bean Pea

The ovary, and sometimes other parts of the
flower, will develop into a fruit that contains one or
more seeds.

The seeds can grow into new, genetically related
plants that produce flowers, and the cycle repeats.
Mustard Maize Rice
SEEDS

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