CH 5: Anatomy of dicotyledonous plants
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Questions and Answers

What is the function of the xylem in a dicotyledonous plant?

  • Production of new tissue
  • Storage of resources
  • Transportation of sugars and nutrients
  • Distribution of water and minerals (correct)

    • What type of cells are found in the cortex layer of a dicotyledonous plant stem?

  • Xylem cells
  • Phloem cells
  • Parenchyma cells (correct)
  • Collenchyma cells

    • What is the role of the pericycle in a dicotyledonous plant stem?

  • Photosynthesis
  • Formation of secondary vascular tissues (correct)
  • Protection from water loss
  • Transportation of nutrients

    • Where are the vascular bundles arranged in a dicotyledonous plant stem?

    <p>In a ring (A)</p> Signup and view all the answers

    What is the function of cambium in a dicotyledonous plant?

    <p>Production of new phloem and xylem (A)</p> Signup and view all the answers

    What is the role of phloem in a dicotyledonous plant?

    <p>Distribution of sugars and nutrients (B)</p> Signup and view all the answers

    What is the role of the pith in a dicotyledonous plant stem?

    <p>Storage of nutrients and transport of substances (A)</p> Signup and view all the answers

    What happens to older xylem layers during secondary growth in a dicotyledonous plant?

    <p>They become heartwood (A)</p> Signup and view all the answers

    What type of tissue is responsible for the formation of wood in a dicotyledonous plant?

    <p>Xylem (D)</p> Signup and view all the answers

    What is the role of the epidermis in a dicotyledonous plant stem?

    <p>Protection and respiration (C)</p> Signup and view all the answers

    What is the main function of roots in dicotyledonous plants?

    <p>Anchorage to the ground (D)</p> Signup and view all the answers

    Which layer of a dicotyledonous root features root hairs?

    <p>Epidermis (A)</p> Signup and view all the answers

    What is the function of the cortex in a dicotyledonous root?

    <p>Facilitates water movement (C)</p> Signup and view all the answers

    Which layer of the root has the Casparian strip, a water-impermeable barrier?

    <p>Endodermis (A)</p> Signup and view all the answers

    What does the pericycle in the dicotyledonous root give rise to?

    <p>Lateral roots (D)</p> Signup and view all the answers

    Which layer of a dicotyledonous root is characterized by the Casparian strip?

    <p>Endodermis (D)</p> Signup and view all the answers

    In dicotyledonous plants, what is the main function of the taproot system?

    <p>Anchorage and absorption of water (B)</p> Signup and view all the answers

    What is the main composition of the cortex in a dicotyledonous root?

    <p>Parenchyma cells (D)</p> Signup and view all the answers

    Which layer in the dicotyledonous root facilitates the movement of water towards the inner layers?

    <p>Endodermis (C)</p> Signup and view all the answers

    What is the primary root that develops from the radicle during germination in dicotyledonous plants called?

    <p>Taproot (A)</p> Signup and view all the answers

    What is the primary function of the epidermis in a dicotyledonous plant stem?

    <p>To protect the plant and prevent water loss (B)</p> Signup and view all the answers

    What type of plant tissue is responsible for the formation of new phloem and xylem in a dicotyledonous plant?

    <p>Cambium (D)</p> Signup and view all the answers

    What is the role of the pericycle in a dicotyledonous plant stem?

    <p>It contributes to the formation of secondary vascular tissues during plant growth (D)</p> Signup and view all the answers

    What type of cells are found in the cortex layer of a dicotyledonous plant stem?

    <p>Collenchyma cells (D)</p> Signup and view all the answers

    What is the main function of the xylem in a dicotyledonous plant?

    <p>To transport water and minerals up to the plant (D)</p> Signup and view all the answers

    What happens to older xylem layers during secondary growth in a dicotyledonous plant?

    <p>They become denser and serve as structural support (C)</p> Signup and view all the answers

    What is the primary function of the root hairs in a dicotyledonous plant?

    <p>To anchor the plant and absorb water and minerals (A)</p> Signup and view all the answers

    What is the role of the pith in a dicotyledonous plant stem?

    <p>To store nutrients and help in the transport of substances across the stem (D)</p> Signup and view all the answers

    What is the main function of the phloem in a dicotyledonous plant?

    <p>To transport sugars and nutrients produced by photosynthesis (A)</p> Signup and view all the answers

    What is the function of the Casparian strip in a dicotyledonous plant root?

    <p>To form a water-impermeable barrier (C)</p> Signup and view all the answers

    What is the main purpose of roots in dicotyledonous plants?

    <p>Anchorage to the ground (B)</p> Signup and view all the answers

    Which layer of a dicotyledonous root features the Casparian strip?

    <p>Endodermis (C)</p> Signup and view all the answers

    What tissue in dicotyledonous root enables the movement of water towards the inner layers?

    <p>Endodermis (C)</p> Signup and view all the answers

    The primary root that develops from the radicle during germination in dicotyledonous plants is called:

    <p>Taproot (A)</p> Signup and view all the answers

    What is the main function of the pericycle in a dicotyledonous plant stem?

    <p>Lateral root initiation (C)</p> Signup and view all the answers

    Which layer of a dicotyledonous root is mainly composed of parenchyma cells?

    <p>Cortex (B)</p> Signup and view all the answers

    What is the role of xylem in dicotyledonous plants?

    <p>Water and nutrient transport (A)</p> Signup and view all the answers

    What type of tissue is responsible for the secondary growth in a dicotyledonous plant stem?

    <p>Cambium (D)</p> Signup and view all the answers

    Which cell type is primarily responsible for support and flexibility in a dicotyledonous plant stem?

    <p>Collenchyma (B)</p> Signup and view all the answers

    What happens to older phloem layers during secondary growth in a dicotyledonous plant?

    <p>They contribute to the formation of bark. (A)</p> Signup and view all the answers

    What role does the pith play in the transport of substances across a dicotyledonous plant stem?

    <p>Assists in the transport of substances (D)</p> Signup and view all the answers

    Which part of the stem in dicotyledonous plants contributes to the formation of secondary vascular tissues during plant growth?

    <p>Pericycle (D)</p> Signup and view all the answers

    What is the role of the waxy cuticle in the epidermis of a dicotyledonous plant stem?

    <p>Preventing water loss (C)</p> Signup and view all the answers

    Which layer of a dicotyledonous stem is composed of parenchyma cells that store nutrients?

    <p>Pith (C)</p> Signup and view all the answers

    What is the main function of phloem in a dicotyledonous plant?

    <p>Sugar and nutrient distribution (C)</p> Signup and view all the answers

    Which tissue is responsible for transporting water and minerals up the plant in a dicotyledonous plant?

    <p>Xylem (B)</p> Signup and view all the answers

    What is the function of stomata in the epidermis of a dicotyledonous plant stem?

    <p>Facilitating respiration and transpiration (A)</p> Signup and view all the answers

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