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Discovering Leaves: The Plant's Vital Food Maker

Leaves are essential for plants to create food through photosynthesis. Learn about the types, shapes, structures, and parts of leaves to identify trees and understand their functions in this detailed guide.

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Discovering Leaves: The Plant's Vital Food Maker

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  1. Leaves

  2. The leaf is a part of the plant that is charge of making food for the plant. • 99% of the photosynthesis is done here. • Leaves can be used to identify trees by looking at the leaf’s characteristics.

  3. Types of Leaves? • Leaves can either be broad and flat or scalelike/needlelike

  4. Types of Broad Leaves • Broad leaves are either simple or compound

  5. Shapes of Simple Leaves

  6. Shapes of Compound Leaves

  7. Parts of the Leaves • Petiole - a thin stalk that connects the blade of the leaf to the plant's stem. • Blade - a thin, flat part of the leaf that extends off the end of the petiole. • Veins - contain vascular tissue and transport food, water, and minerals • Lobe - rounded or pointed section of a leaf • Margin – the border or edge of a leaf; there are many different types • Base – the bottom part of the leaf • Leaflet – one of the small leaves on a compound leaf

  8. Leaf Information lobe Simple leaf Compound leaf

  9. Leaf Arrangement on Stem

  10. Simple Leaves - Margin Structure

  11. Leaf Venation • How veins are arranged on the leaf

  12. Basic Leaf Base Shapes V-Shaped Rounded Flat Heart Shaped Uneven

  13. Show What You Learned Simple or Compound? Simple

  14. Show What You Learned Leaf venation? Palmate

  15. Show What You Learned Leaf margin? Lobed

  16. Show What You Learned Leaf arrangement on stem? Opposite

  17. Leaf Parts

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