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Today’s Agenda…
Get your clickers! 
Bellringer questions
Take up homework
Create a T-chart to compare seedless
vascular and nonvascular plants (SP
#3)
Notes on Parts of Seed Plants (SP #4)
Homework: Worksheet
PLANTS
Seedless
Plants
Non
vascular
Vascular
Seed
Plants
Seeds in
Cones
Seeds in
Flowers
Parts of a
Seed Plant
Study Pack #4
Today’s Goals…
I can identify the characteristics of seed
plants.
I can explain the structure and function
of roots, stems, and leaves.
Characteristics of Seed Plants
Most of the plants you are familiar with
are seed plants
Most seed plants have leaves, stems,
roots, produce seeds, and contain
vascular tissue
Leaves
Organs where photosynthesis takes
place
Come in many shapes, sizes, colors
Figure 14
Leaf Cell Layers
Upper and lower surface cells make up
the epidermis
Covers and protects the leaf
A waxy cuticle covers the epidermis
Leaf Cell Layers
Small openings in the epidermis are
called stomata
Allow carbon dioxide, water, and oxygen
to enter and leave the cell
Surrounded by guard cells that open and
close
Leaf Cell Layers
Below the upper epidermis is the
palisade
Closely packed, long, narrow cells with
many chloroplasts
Food is made here (photosynethesis takes
place here)
Leaf Cell Layers
Below the palisade is a spongy layer
Loosely arranged cells separated by air
spaces
Vascular tissue is found in this layer
Stems
Usually above ground
Support the braches, leaves, and
reproductive structures
Materials move between leaves and
roots through the vascular tissue
Roots
Allow water and other substances to
enter the plant
Act as anchors
Support other plant parts that are
aboveground
Store food
What did you learn?
Discussion Question
How are the structure and function of
living things related?
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