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Angiosperm notes
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Angiosperm notes

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    Angiosperm notes Angiosperm notes Presentation Transcript

    • ANGIOSPERMS
    • Morphology vs. Anatomy
      • Morphology is the study of the external structure of plants
        • Ex. placement of leaves along a stem
      • Anatomy is the study of the internal structures of plants
        • Ex. the arrangement of cells and tissue within a leaf
    • MONOCOTS VS. DICOTS
      • Angiosperms are split into 2 classes
      • Monocots – single cotyledon (seed leaf)
      • Dicots – two cotyledons
      • Cotyledon - seed leaf, one in moncots and two in dicots;
      • primary embryonic leaf within the seed in which nutrients for the new plant are stored (left- dicot, bean; right- monocot, corn)
    • Roots, Stems & Leaves
      • Roots
        • anchor the plant into the soil
        • Absorb minerals and water
        • Conduct water and nutrients
        • Store food
    • Monocot root Cross section
    • Dicot Root cross section
      • Stems
        • May be vegetative (leaves)
        • Stems may be floral (flowers)
        • Stems
        • Have alternation of nodes (points at which leaves are attached)
        • Have internodes (stem segments b/w nodes)
    • Modified Stems
      • Stolons are horizontal stems that grow along surface ex. strawberry runners
      • Rhizomes are horizontal stems that grow underground ex. Irises
      • Tubers are enlarged ends of rhizomes that store food ex. potatoes
      • Bulbs are vertical, underground shoots with fleshy leaf bases modified food storage
    • Monocot stem cross section
    • Dicot stem cross section
      • Leaves
        • Main photosynthetic organs of plants
        • Consist of a blade and a stalk (petiole) which joins the leaf to the stem
        • Grasses and many monocots lack petioles
      • Some monocots have petioles
    • Venation
      • Monocots have parallel major veins that run the length of the leaf blade
      • Dicots generally have a multibranched network of major veins
      • All leaves have numerous minor cross veins
    •  
    •  
    • Modified Leaves Spines, thorns and prickles Tendrils
    •  
    • SUMMARY
    •  
    •  
    • WHAT DO I NEED TO KNOW
      • Unifying characteristics of gymnosperms
      • Unifying characteristics of angiosperms
      • Explain how gymnosperms are adapted for survival in a land environment with respect to the following
        • Alternation of generation
        • Roots
        • Stems
        • Leaves
        • seeds
        • Pollen
        • Vascular tissue
      • Use specimens to differentiate between monocots and dicots
      • Describe how angiosperms are adapted for survival in a land environment with respect to the following
        • Alternation fo generations
        • Flowers
        • Pollen
        • Enclosed seeds
        • Fruit
        • Roots
        • Stems
        • Leaves
        • Vascular tissue
      • Compare the ways in which mosses, ferns, gymnosperms and angiosperms have adapted to a land environment
      • TEXT
        • Read all the following…
        • Ch 22 all sections
        • Ch 23 most pictures, 23-4(modified roots),23-5,23-7
        • Ch 25-1,25-2
        • Answer the following questions…
        • Page 484&485 all
        • Page 514&515 (mc#2,TF#1,2,4,5,6,8 WR#1,4 CM#3,4,6 CCT#2,3,4,5,7,8)
        • Page 548&549 (mc#1-4,7,8 TF#1,3-7 WR#1,3 CM#2,3,4,5,6,8 CCT#1,2,4,6,7