Transcript Plant Anatomy

Plant Anatomy
Systems and Tissues
Plant
Structure
Root and shoot systems are
made up of basic plant
organs: roots, leaves,
stems, flowers.
Root system
• What are the major
functions of roots?
Shoot system functions
• What are some of
the major functions
performed by the
shoot system?
Structure is used in classification
• Two main categories of flowering plants:
monocots and dicots
• The two groups are distinguished on the
basis of flower parts, leaf veins, and
other structural features.
Flowers
Monocots: flower
parts in 3’s
Dicots: flower parts in
4’s, 5’s, 6’s
Leaves
Monocots: parallel
veins in leaves
Dicots: network of
veins in the leaves
Roots
Monocots: fibrous root
system with no main
tap root.
Dicots: Main tap root,
with smaller side roots
branching off.
Seeds
Monocots: single
cotyledon; endosperm
and cotyledon are
separate
Dicots: two cotyledons;
endosperm is contained
in the cotyledon.
Plant Tissues
•Dermal tissue
•Ground tissue
•Vascular tissue
Copy this table:
Primary
tissue type
Sub-types
Epidermis
Dermal
Periderm
Parenchyma
Ground
Collenchyma
Sclerenchyma
Xylem
Vascular
Phloem
Structure
Functions
Dermal tissue: Epidermis
• How is an
epidermis of a plant
similar to your
epidermis?
• What does the
epidermis do?
• What features do
you see in these
cells?
Dermal tissue: Periderm
• How is the periderm
like the layer of
dead skin cells on
human skin?
• What does the
periderm do?
• What features do
you see in these
cells?
Ground tissue: Parenchyma
• What can you see
in these
parenchyma cells?
• What are some
functions of
parenchyma cells?
Ground Tissue: Collenchyma
• How might support
cells be different
from other plant
cells?
• Plants don’t have a
skeletal system as
humans do. What
holds a plant up?
• What features do
you see in these
cells?
Ground tissue: Sclerenchyma
• How are these
thick-walled cells
different from
collenchyma cells?
• What features do
you see in these
cells?
• Sclerenchyma cells
are dead at
maturity. Why might
that be?
Vascular tissue: Xylem
• Xylem tissue moves
water. What
features would the
cells need to carry
out this function?
• What features do
you see in these
cells?
Vascular tissue: Phloem
• Phloem tissue
moves sap, which is
sugar dissolved in
water. What
features would the
cells need to carry
out this function?
• What features do
you see in these
cells?