Structure and Function of Plants

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Presentation transcript:

Structure and Function of Plants Chapter 10A Plant Structure

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

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

Botany The study of plants

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

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

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

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

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

Leaves Blade Compound leaf Leaflet

Leaves Veins Petiole Parallel venation Palmate venation Pinnate venation Petiole

Leaves Arrangements of leaves Alternate Opposite Whorled

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

Plant Tissues Xylem Long and hollow Carries water Wood Heartwood Sapwood

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

Plant Tissues Epidermis Outermost tissue Flat cells Cuticle

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