Wood Structure and Function
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Questions and Answers

What is the primary function of sap wood in woody plants?

  • To conduct water and nutrients (correct)
  • To store nutrients for future growth
  • To provide structural support to the plant
  • To protect the plant from external damage
  • What term is used to describe wood that has ceased conducting functions?

  • Cambium
  • Phloem
  • Heart wood (correct)
  • Cortex
  • How does heart wood compare to sap wood in terms of durability?

  • Heart wood is more resistant to microbial attack than sap wood (correct)
  • Heart wood is less resistant to decay than sap wood
  • Heart wood decays faster than sap wood
  • Heart wood has no significant differences in durability compared to sap wood
  • What typically happens to the vessels of sap wood after a few years?

    <p>They deteriorate and become non-functional</p> Signup and view all the answers

    Why does heart wood often appear darker than sap wood?

    <p>It is filled with substances that preserve the wood</p> Signup and view all the answers

    Signup and view all the answers

    Study Notes

    Wood Structure and Function

    • Woody plants have vessels that conduct water and nutrients.
    • Sapwood: These vessels remain functional for a few years, often just one.
    • Heartwood: These vessels stop conducting water and nutrients.
    • Heartwood Vessels: Often filled with substances (e.g. tannins, resins).
    • Heartwood Significance:
      • Darker in color than sapwood due to filling materials.
      • More decay-resistant than sapwood.
      • Improved resistance to microbial attacks.

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    Description

    This quiz explores the structure and function of woody plants, focusing on the characteristics of sapwood and heartwood. Learn about the roles of vessels in water and nutrient conduction, and discover the significance of heartwood in terms of decay resistance and microbial protection.

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