Seeds - PowerPoint PPT Presentation

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Seeds

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  1. Seeds The seed is a stage in the life cycle of a flowering plant (angiosperms)

  2. Seed types • Monocot seeds and Dicot seeds • Example of a monocot seed is a corn seed • Example of a Dicot seed is an apple seed Dicot Monocot

  3. Parts of a monocot seedCorn seed Seed coat - protects the seed Endosperm - surrounds the embryo and stores food. Cotyledon - absorb nutrients from the endosperm and transport it to the plant.

  4. Dicot Bean Seed and Monocot Corn Seed

  5. Roots of Angiosperms Dicots have one long thick root called a taproot with secondary small roots growing from it.

  6. Monocot Roots The monocot root is made up of small branching fibers

  7. Stems • Stems contain tubes with veins that carry food down to the plant’s roots and water and minerals upward to the leaves. The bundles of veins within a monocot stem are scattered. The bundle of veins of a dicot stem are arranged in a neat circle

  8. Leaves • Leaves of a Monocot plant have parallel veins • Leaves of a Dicot plant have intersecting veins that form a branching pattern. Dicot leaf Monocot leaf

  9. Flowers • Monocot flowers have parts that are in three petals • Dicot flowers have four or five petals. Dicot flower Monocot flower

  10. Dicot angiosperms