Share 4.2: Plant Structures for Reproduction
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A plant’s life cycle includes two different stages:
sporophyte and gametophyte
During the sporophyte stage, a plant produces
spores
Spores that will develop into __________.
gametophytes
During the gametophyte stage, male and female gametophytes produce sex cells that will be involved in the process of
fertilization
What is fertilization?
occurs when a sperm cell unites with an egg cell to produce a new organism.
In gymnosperms, gametophytes develop inside
cones
In angiosperms, gametophytes develop inside
flowers
The male gametophyte in vascular plants is called
pollen
New plants can grow from the roots, leaves, or stems of a parent plant. This is an example of ____________ reproduction.
asexual
All gymnosperms have
cones and unprotected seeds
The reproductive structures of gymnosperms are
cones
All angiosperms produce
flowers and fruits that contain seeds.
The male reproductive parts of the flower
stamen
Pollen is produced in the _________ in flowers.
anther
The female reproductive structure is the
pistil
Some angiosperms are pollinated by the wind, but most rely on animals called
pollinators
