Title: Plant%20Anatomy
1Plant Anatomy
2Plant Structure
- Root and shoot systems are made up of basic plant
organs roots, leaves, stems, flowers.
3Root system
- What are the major functions of roots?
4Shoot system functions
- What are some of the major functions performed by
the shoot system?
5Structure 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.
6Flowers
Monocots flower parts in 3s
Dicots flower parts in 4s, 5s, 6s
7Leaves
Monocots parallel veins in leaves
Dicots network of veins in the leaves
8Roots
Monocots fibrous root system with no main tap
root.
Dicots Main tap root, with smaller side roots
branching off.
9Seeds
Monocots single cotyledon endosperm and
cotyledon are separate
Dicots two cotyledons endosperm is contained in
the cotyledon.
10This flower is probably a
- Monocot
- Dicot
11This flower is probably a
- Monocot
- Dicot
12This flower is probably a
- Monocot
- Dicot
13W O R K T O G E T H E R
- If youre asked to distinguish between monocots
and dicots, which plant parts would make this
task easiest?
14Plant Tissues
- Dermal tissue
- Ground tissue
- Vascular tissue
15Copy this table
Primary tissue type Sub-types Structure Functions
Dermal Epidermis
Dermal Periderm
Ground Parenchyma
Ground Collenchyma
Ground Sclerenchyma
Vascular Xylem
Vascular Phloem
16Dermal 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?
17Dermal 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?
18Ground tissue Parenchyma
- What can you see in these parenchyma cells?
- What are some functions of parenchyma cells?
19Ground Tissue Collenchyma
- How might support cells be different from other
plant cells? - Plants dont have a skeletal system as humans do.
What holds a plant up? - What features do you see in these cells?
20Ground 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?
21Vascular 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?
22Vascular 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?
23Wood contains cells that are dead at maturity.
They must be
- Phloem
- Xylem
- Parenchyma
- Collenchyma
24Potatoes are tubers (modified stems) that store
starch. Most of a potatos tissue must be
- Sclerenchyma
- Collenchyma
- Parenchyma
- Vascular tissue
25W O R K T O G E T H E R
- Linen thread for weaving fabric is spun from bast
fibers that come from the stem of the flax plant.
Bast fibers are long, tough, and strong. Which
plant tissue type are they most likely made up of?