Seed Plants
Go -->
(Skip directly to the quizzes)
Quizzes -->
Seed Plants can be divided into categories
based on the type of seed they produce.
Plants
Angiosperms
<--back
Gymnosperms
Angiosperm means “seed in a vessel”
which means the seeds are enclosed in a fruit.
If you've ever eaten
an apple, you have
observed how the
seeds are
surrounded by the
fruit.
Continue on to see how
angiosperms are further
categorized. Go -->
The flower is the
reproductive structure of
an angiosperm. Go
here to identify the
structures of a flower.
Flowers-->
back to the beginning of
Seed Plants
Angiosperms
Monocots
back to -->
Seed Plants
Dicots
Characteristics of Monocots:
*veins in the leaves are parallel
-->
*flower parts are in groups of three or multiples of three
*vascular bundles are scattered throughout the stem
*one seed leaf
<--back
-->
-->
-->
Typical Monocot Leaves
<--back to monocot characteristics
Typical Monocot Flowers
petals are in multiples of three
<--back to monocot characteristics
Vascular bundles are scattered throughout the stem.
<--back to monocot characteristics
Monocot seeds have one seed leaf.
(seeds don't “split” in half like bean seeds)
In this group of seeds,
the corn seeds had to be
cut in half.
<--back to monocot characteristics
Characteristics of Dicots:
*veins form a netlike pattern in the leaf
-->
*flower parts are in groups of fours or fives
-->
*vascular bundles form a ringlike pattern in the stem
*two seed leaves
<--back
-->
-->
The veins in the leaves of dicots
are arranged in a netlike pattern.
<--back to characteristics of dicots
Dicot flower parts are arranged in groups of fours or fives.
<--back to characteristics of dicots
The vascular bundles in a dicot stem are arranged
in patterns around the edge of the stem.
Vascular bundles form the “rings.”
<--back to characteristics of dicots
Dicot seeds have two seed leaves.
(They split apart into two halves easily, like a peanut.)
<--back to characteristics of dicots
Gymnosperm means “naked seed” and
the seeds are not enclosed in a fruit.
back to the beginning of
Seed Plants
Flowers contain the reproductive parts of the plant.
See the parts -->
<-- back to angiosperms
Parts of a Flower
stamen go -->
(male part)
anther
(holds the pollen)
pistil go -->
(female part)
stigma
style
filament
ovary
<-- back
Close-up of the Stamen
(male part of the flower)
anther
- pollen is produced here
- insects/birds/bees carry
pollen to other flowers
<-- back to flower
filament
- holds the anther
in place
Close-up of the Pistil
(female part)
stigma
- sticky to trap pollen
- pollen that is stuck to
insects/birds/bees
brushes off onto stigma
style
- tube that connects
stigma to ovary
<-- back to flower
ovary
- contains the ovules
where the eggs are
produced
- as the seed develops,
the ovary changes into
a fruit fruit -->
Fruits
The ripened
ovary and other
structures
develop into a
fruit that encloses
the seeds. The
fruit helps in seed
dispersal.
<-- back to pistil
Check your understanding
Take the Monocot/Dicot Quiz
Go -->
Take the Flower Parts Quiz
#1
Monocot
or
Dicot
Nice Work!
Next Question -- >
Try again. The veins in the leaf are parallel.
<-- back to question #1
#2
Monocot
or
Dicot
Try again. Count the number of petals on the flower.
<-- back to question #2
Woo hoo! Excellent.
next question -->
#3
Monocot
or
Dicot
Nope, try again.
Check out the netlike veins in the purple leaf.
<-- back to question #3
Sweet! Quite impressive!
next question -->
#4
Monocot
or
Dicot
Fantastic! Great Job!!
next question -->
Nope. Count the petals.
There are six, which is a multiple of three.
<-- back to question #4
#5
Monocot
or
Dicot
Nope, count the petals and give it another shot.
<-- back to question #5
Super Duper!
<-- back to the beginning of the slide show
<-- back to the start of the quizzes