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A. Two types of plants:
1. Non-vascular,
2. Vascular.
B. Non-Vascular Plants:
1. Plants without tubes are
called nonvascular plants.
2. Mosses are examples of
nonvascular plants which lack
tubes.
3. Mosses are tiny plants
that live in moist places.
4. Because mosses lack
tubes that is why they are
short and like shaded moist
areas.
5. Mosses rely on moisture
to reproduce and to transport
water and nutrients by
diffusion & osmosis.
C. Vascular Plants:
Vascular plants can be divided
into two groups:
a) Seedless plants,
b) Seed plants.
D. Seedless Plants:
1. Ferns are examples of
seedless plants that have
tubes.
2. Ferns are able to grow
taller because they have tubes
for transporting water and
nutrients from roots.
3. Ferns still need a moist
environment to reproduce, so
like mosses, they also like
shaded areas.
E. Seed Plants:
There are two types of seed
plants:
1. Gymnosperms: nonflowering seed plants
2. Angiosperms: flowering
seed plants.
F. Classification of Plants:
Plants
Level I
(mosses, ferns, pine trees & flowers)
Nonvascular
Vascular
(ferns, pine trees, & flowers)
(mosses)
Level II
Seedless Plants
(ferns)
Seed Plants
(pine trees & flowers)
Level III
Gymnosperms
Level IV
(pine trees)
Angiosperms
(flowers)
G. Seed Plant Structure:
1. There are two types of
vascular tissue:
a) xylem: carries water.
b) phloem: carries food.
2. Roots serve three
purposes:
a) anchor plant to
ground.
b) absorb water and
minerals from soil.
c) store food
(e.g. taproot).
3. Two root types:
a) fibrous root:
consists of numerous
roots & root hairs
(e.g. pine tree).
b) taproot: has one
main root (e.g. carrot).
4. Stems serve two
purposes:
a) support leaves
to maximize food
making capabilities.
b) transport water,
minerals, and food
between roots and
leaves.
5. Two stem types:
a) herbaceous: green
and soft stems.
b) woody: hard stems
that generally contain
seasonal rings.
6. Leaves serve one primary
function:
a) make food for the plant.
- this is accomplished
through the process of
photosynthesis.
- sunlight energy is
used to combine water
and carbon dioxide to
make food (glucose)
during photosynthesis.
7.