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Vascular Bundles in Roots
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Vascular Bundles in Roots

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Questions and Answers

What is the primary function of phloem in plants?

  • Photosynthesis
  • Structural support
  • Transport of water
  • Transport of nutrients (correct)
  • What type of growth do apical meristems primarily facilitate?

  • Increase in height (correct)
  • Root development
  • Leaf expansion
  • Increase in diameter
  • Which type of plant tissue is primarily involved in storage and photosynthesis?

  • Parenchyma (correct)
  • Collenchyma
  • Xylem
  • Sclerenchyma
  • Which permanent tissue type provides structural support to the plant?

    <p>Collenchyma</p> Signup and view all the answers

    What is the role of ground tissues in plants?

    <p>Facilitate photosynthesis and storage</p> Signup and view all the answers

    Which of the following statements about secondary growth is correct?

    <p>It is facilitated by lateral meristems.</p> Signup and view all the answers

    Which of the following correctly describes meristematic tissues?

    <p>They give rise to specialized cells.</p> Signup and view all the answers

    What distinguishes sclerenchyma from collenchyma in plants?

    <p>Sclerenchyma contains thick cell walls; collenchyma has thinner walls.</p> Signup and view all the answers

    What is a defining characteristic of meristematic tissues in plants?

    <p>They are located in the roots and shoots of plants.</p> Signup and view all the answers

    Which type of plant tissue is responsible for the primary growth of plants?

    <p>Meristematic tissue</p> Signup and view all the answers

    What distinguishes permanent tissues from meristematic tissues?

    <p>Permanent tissues consist of non-dividing cells.</p> Signup and view all the answers

    Where are apical meristems typically located?

    <p>At the tips of roots and shoots</p> Signup and view all the answers

    Which of the following best defines tissue in plants?

    <p>A group of similar cells working together for a specific function.</p> Signup and view all the answers

    Which of the following types of meristematic tissues contribute to the thickness of plants?

    <p>Lateral meristem</p> Signup and view all the answers

    What is the role of vascular cambium in plants?

    <p>To allow for lateral growth along the plant.</p> Signup and view all the answers

    What is the primary function of lateral meristems in plants?

    <p>Facilitate secondary growth</p> Signup and view all the answers

    Which of the following is NOT a type of plant tissue?

    <p>Epithelial tissue</p> Signup and view all the answers

    What type of cells does the vascular cambium primarily produce?

    <p>Secondary xylem and phloem</p> Signup and view all the answers

    What does cork cambium produce?

    <p>Cork cells</p> Signup and view all the answers

    The term 'heartwood' refers to which type of wood?

    <p>Inner, older xylem that no longer conducts water</p> Signup and view all the answers

    Which type of permanent tissue is responsible for covering the whole body of nonwoody and young woody plants?

    <p>Epidermis</p> Signup and view all the answers

    What is the main characteristic of simple permanent tissues?

    <p>Composed of one kind of cell</p> Signup and view all the answers

    What role does the waxy cuticle play in the epidermis?

    <p>Prevents water loss</p> Signup and view all the answers

    Which of the following is a characteristic of complex permanent tissues?

    <p>Composed of two or more kinds of cells</p> Signup and view all the answers

    What role do trichomes play in the epidermis of plants?

    <p>They prevent water loss and reflect excess light.</p> Signup and view all the answers

    Where are guard cells located in a leaf?

    <p>On the lower epidermis.</p> Signup and view all the answers

    What is the primary function of parenchyma cells in plants?

    <p>Synthesis and storage of plant food.</p> Signup and view all the answers

    What characteristics of collenchyma cells provide support to plants?

    <p>Flexible structure suited for immature parts.</p> Signup and view all the answers

    What are stomata primarily used for in plants?

    <p>Gas exchange.</p> Signup and view all the answers

    Which of the following is NOT a function of the epidermis in plants?

    <p>Conducting photosynthesis.</p> Signup and view all the answers

    What type of permanent tissue is responsible for the transport of nutrients in plants?

    <p>Phloem.</p> Signup and view all the answers

    How do trichomes contribute to a plant’s defense mechanism?

    <p>By reducing water loss and reflecting light.</p> Signup and view all the answers

    Which type of sclerenchyma cell is responsible for the gritty texture found in certain fruits?

    <p>Sclereids</p> Signup and view all the answers

    What are the two types of complex permanent tissues found in vascular plants?

    <p>Xylem and Phloem</p> Signup and view all the answers

    Which type of cell in xylem is known for facilitating water transport due to its perforated plates?

    <p>Vessel Elements</p> Signup and view all the answers

    What function do fibers serve in relation to sclerenchyma cells?

    <p>Providing structural support</p> Signup and view all the answers

    Which type of plant tissue consists of both water-conducting and supporting cells?

    <p>Xylem</p> Signup and view all the answers

    What is the primary role of tracheids in the xylem of vascular plants?

    <p>Water conduction</p> Signup and view all the answers

    Which simple permanent tissue provides a protective layer on plant surfaces?

    <p>Epidermal Tissue</p> Signup and view all the answers

    Which type of cells are characterized by their thin and elongated structure, aiding in water passage?

    <p>Tracheids</p> Signup and view all the answers

    Study Notes

    Vascular Bundles in Roots

    • Vascular bundles consist of xylem and phloem, essential for water and nutrient transport in plants.
    • Xylem transports water from roots to other parts; phloem transports nutrients throughout the plant body.

    Plant Tissue Classification

    • Plant tissues are categorized into meristematic and permanent tissues.
    • Meristematic Tissues: Composed of dividing cells, found in growth regions.
      • Apical meristems lead to primary growth (increasing height).
      • Lateral meristems lead to secondary growth (increasing diameter).
    • Permanent Tissues: Composed of non-dividing specialized cells, crucial for plant functions like photosynthesis, support, and nutrient transport.

    Types of Permanent Tissues

    • Simple Permanent Tissues: Made up of one type of cell.

      • Epidermal Tissues: Cover plant surfaces; have specialized structures like root hairs for absorption and trichomes to reduce water loss.
      • Ground Tissues:
        • Parenchyma: Responsible for storage, synthesis, and photosynthesis.
        • Collenchyma: Provides flexible support to young plant parts.
        • Sclerenchyma: Offers strength; consists of sclereids (in seed coats and some fruits) and fibers (used commercially).
    • Complex Permanent Tissues: Composed of two or more types of cells, primarily involved in vascular functions.

      • Xylem: Composed of tracheids and vessel elements; aids in water transport.
      • Phloem: Composed of sieve-tube elements; facilitates nutrient transport.

    Structures in Xylem

    • Tracheids: Elongated cells allowing water passage; have thick walls for support.
    • Vessel Elements: Feature perforated plates facilitating efficient water transport.

    Functions and Importance of Plant Tissues

    • Plants rely on meristematic tissues for growth, while permanent tissues serve specific functions vital for survival.
    • Understanding tissue types and functions underscores the complexity of plant structures and their essential roles in ecology and agriculture.

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    Related Documents

    L5 Plant Tissues.pdf

    Description

    Explore the structure and function of vascular bundles in plant roots. This quiz will cover the composition of phloem and xylem, along with their roles in nutrient transport. Test your knowledge on simple and complex permanent tissues in botany.

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