This site is intended for children in grades
1-4.
FRUIT DEVELOPMENT
The story about how a flower
develops
the kind of fruit you like
to eat!!
CLICK FOR INFORMATION
FOR TEACHERS
A fruit is a structure that develops as the ovary of a flower
that nourishes and protects developing seeds. Every angiosperm,
which is a flowering plant, produces some type of fruit during the processes
of reproduction and seed development, although you may not want to be eating
all of those fruits! Some of them can look pretty weird, and probably taste
bad too! Here we will take a take a look at some flowers and how
they develop the seeds and fruit that you recognize.
FLOWER STRUCTURE
POLLINATION
FERTILIZATION
SEEDS & FRUIT
FLOWER STRUCTURE
This is the general structure
of a flower. As you probably know,
flowers can be many different
shapes and colors.
Anther + Filament = a Stamen
Stigma + Style + Ovary = the
Pistil
The receptacle
is simply the base of the flower. The sepals are leaf-like
structures that protect the developing flower. They fold back as
the flower opens and the beautiful, colorful petals emerge.
We aren't the only creatures who think petals are pretty and smell nice....many
insects, birds, animals and even bats are attracted to the petals and help
to transfer pollen from flower to flower.
The pistil
of the flower is the female part, and is made up of the stigma, style,
and ovary. The stigma is attached to the top of the style and produces
a sticky substance that traps pollen. At the base of the pistil is
the ovary. The ovary contains ovules, which are small sack-like
structures that contain ova, or eggs. When an egg is fertilized,
it develops into a seed, and the ovary grows and produces many nutrients
that the seed needs. The fruit we eat is actually the ovary of a
flower that is fully developed.
The stamen
of the flower is the male structure, and it is made up of the anther and
filament. The filament supports the anther, which can produce thousands
of tiny pollen grains. The pollen fertilizes the egg inside the
ovule and makes a seed.
You know that
not all flowers look the same, but they also do not possess all the structures
illustrated above. Many of them do, but there can be male and female
plants and flowers, just like there are male and female people! Here
are some flowers that are shaped a little differently...
GO TO:
POLLINATION
FERTILIZATION
SEEDS & FRUIT
James Madison University
This site has been created
by
Stacy Morgen,
1997.
© 1998 Michael H. Renfroe