How Plants Are Classified The Big Two
Link What’s the purpose of a hose pipe?
Essential Question ? • How are plants classified into two main groups? • Does the stem/leaf have tubes? • Yes – Vascular • No - Nonvascular
Vascular Plants • The largest group • Well developed system for transporting water & food • True roots, stems, & leaves • Tube-like structures that support plant & circulate water & food
Vascular Plants • Two main groups of vascular based on stem type • Woody stems: trees & shrubs (tall) • Herbaceous stems: grasses, dandelions, tomato plants (soft, shorter stems)
Have you heard Buzz Lightyear’snew nickname? It’s herbaceous….because he’s not Woody!
Xylem & Pholem • Xylem – moves water from roots to plant • Pholem – moves food from leaves to plant (food and pholem start with the same sound)
Nonvascular Plants • No well-developed system for transporting water and food • No true roots, stems, or leaves • Must get resources directly from the environment • Passes on water and food cell-by-cell
Draw these nonvascular plants Moss Liverwort
Nonvascular Plants • Line up along the outside of the classroom, shoulder to shoulder. • Find a way to pass water from one end to the other using a cup. • Was this effective? • Why do you think nonvascular plants are small?