1. Structure and Function of Plants
Chapter 10A
Plant Structure

2. What is a Plant? Kingdom Plantae Characteristics: Producers
Eukaryotic and multicellular
Have organized tissues

3. What is a Plant? Characteristics: Have plastids
Have cell walls containing cellulose

4. Botany
The study of plants

5. Plant Anatomy Most plants have three types of organs Roots Stems
Leaves
Some plants also have flowers

6. A region where a leaf is or was attached
Node
A region where a leaf is or was attached

7. Plant Anatomy Nodes Roots do not have nodes Stems have nodes
Leaves do not have nodes but are attached to stems at nodes

8. Roots Root system Two types of root systems: Taproot system
Fibrous root system

9. Stems Produce leaves and carry substances Two types of stems:
Woody stems
Herbaceous stems

10. Leaves
Blade
Compound leaf
Leaflet

11. Leaves Veins Petiole Parallel venation Palmate venation
Pinnate venation
Petiole

12. Leaves
Arrangements of leaves
Alternate
Opposite
Whorled

13. Internal Structure Cell walls Plastids Made largely of cellulose
Turgor pressure
Plastids
Chloroplasts
Chlorophyll
Other types

14. Plant Tissues Xylem Long and hollow Carries water Wood Heartwood
Sapwood

15. Plant Tissues Phloem Fibers Carries a sugar solution Vascular bundles
Support the plant
Long, narrow cells

16. Plant Tissues
Epidermis
Outermost tissue
Flat cells
Cuticle

17. Bark
Outside the xylem of a tree
Vascular cambium
Cork
Cork cambium