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Structure of Plants Leaves Blade Veins –midrib Petiole.

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Presentation on theme: "Structure of Plants Leaves Blade Veins –midrib Petiole."— Presentation transcript:

1

2 Structure of Plants

3 Leaves Blade Veins –midrib Petiole

4 Leaves

5 Is this leaf simple or compound? –simple What is this structure that connects the leaf to the stem? –petiole What is this central vein called? –midrib

6 Is this leaf simple or compound? –Compound Is this pinnately or palmately compound? –Palmately

7 Does this plant have simple or compound leaves? –Simple How are the leaves arranged? –Opposite arrangement

8 Are these leaves simple or compound? –Compound How are the leaves arranged? –Alternate arrangement

9 Inside Leaves

10 What is the primary function of the cuticle? –Prevent water loss

11 Inside Leaves What is the primary function of the xylem? –Transport of water

12 Inside Leaves What is the primary function of the phloem? –Transport of sugars

13 Inside Leaves What is the primary function of the guard cells? –Open and close the stomata stomata

14 Stems Two functions: –Support leaves and flowers –Transport water and nutrients within the plants Leaves attach at nodes Woody or herbaceous –Woody - trees, shrubs, and vines

15 Roots Typically the portion of the plant that grows below the surface of the soil Absorb water and minerals from the soil Root hairs increase the surface area

16 Roots Two types –Taproot - single central root with much smaller side roots branching out from it; reaches deep to tap groundwater –Fibrous root - clump of threadlike, shorter root divisions; collect water and minerals from a shallow but wide area

17 Roots TaprootFibrous root

18 Flowers The reproductive organ of a flowering plant Function to produce gametes and provide a structure for fertilization Pollen is a carrier of sperm Pollination - the process of transporting pollen from the male to female flower parts

19 Seeds Reproductive structure consisting of a plant embryo and its stored food. Plants have various ways of dispersing, or spreading, their seeds. In flowering plants, the seed develops in a structure called a fruit.

20 Kingdom Plantae nonvascularvascular seedlessseed gymnospermsangiosperms monocotsdicots


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