This document compares the key differences between monocots and dicots. It begins by explaining that flowering plants are divided into two classes: monocots and dicots. The main differences discussed are that monocots have vascular bundles that are scattered in the stem cross-section, while dicots have vascular bundles arranged in a ring. Examples of monocots include palms, grasses, orchids and onions, while dicots include oaks, roses, mustards, cacti and sunflowers. Images are also provided showing the different vascular bundle arrangements in a monocot and dicot plant.
2. Agenda
Angiosperm- two classes
1. Monocots
2. Dicots
Differences between monocots and
dicots
Identify plants and place them in the
two groups
3. What are they?
Angiosperm - Flowering plants. First
appearing at least 110 million years
ago from an unknown gymnosperm
ancestor, flowering plants have risen
to dominance in most of the world's
floras. Angiosperms are divided in to
two groups: monocot and dicot.
4. What are they?
Monocotyledons (Monocots) – These
plants have specific characteristics
that class them as such.
Some examples are:
– Palms
– Grasses
– Orchids
– onions
6. What are they?
Dicotyledons (Dicots) – Dicots also
have special characteristics.
Some examples of Dicots are:
– Oaks
– Roses
– Mustards
– Cacti
– sunflowers
8. Comparison of Plants
Monocot is on the
left
– Oat plant
Dicot is on the right
– Bean plant
Notice the
difference in the
two plants
9. Vascular Bundle of
Monocots
In monocots, the
vascular bundles in
the stem cross
section are usually
scattered or more
complex of an
arrangement as
compared to dicots.
10. Vascular Bundle of
Dicots
The vascular
bundles in the stem
cross section of
dicots are arranged
in a circle, or ring.
12. Review
1. What are three different
characteristics that make monocots
and dicots different?
2. Are all plants with monocot
characteristics monocots?
3. What are some plants that are
classified as monocots?
4. What are some plants that are
classified as dicots?