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 Seed Plants Non vascular Vascular 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? SHARE THINK PAIR