Plant Growth and Development: Chapter 15 Quiz
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Questions and Answers

What is the relationship between the structure of a cell, a tissue, an organ, and the function they perform?

  • The function of an organ determines the structure of a cell
  • The structure of a cell, tissue, and organ are unrelated to their function
  • The structure of a cell determines the function of an organ (correct)
  • The function of an organ determines the structure of a tissue
  • What precedes flowering in a plant and why?

  • Vernalisation precedes vegetative phase due to environmental triggers
  • Flowering precedes vegetative phase due to photoperiodism
  • Vegetative phase precedes flowering due to hormonal regulation (correct)
  • Vegetative phase precedes flowering due to developmental cues
  • What is the sum of the two processes: growth and differentiation?

  • Photoperiodism
  • Vernalisation
  • Redifferentiation
  • Development (correct)
  • How are leaves, flowers, and fruits different from the rest of the plant organs?

    <p>They have limited dimensions and appear periodically</p> Signup and view all the answers

    What maintains the increase in height or girth of trees over time?

    <p>Growth regulators</p> Signup and view all the answers

    What determines the different structural and functional attributes of cells in a plant?

    <p>Differentiation process</p> Signup and view all the answers

    What is the primary characteristic of growth in a living being?

    <p>Irreversible permanent increase in size</p> Signup and view all the answers

    Why do plants retain the capacity for unlimited growth throughout their life?

    <p>Presence of meristems with self-perpetuating cells</p> Signup and view all the answers

    What is the type of growth characterized by new cells being added to the plant body by the activity of meristems?

    <p>Open form of growth</p> Signup and view all the answers

    Which meristem is responsible for the primary growth and elongation of plants along their axis?

    <p>Root apical meristem</p> Signup and view all the answers

    What is the term used for the increase in the girth of organs caused by lateral meristems in dicotyledonous plants and gymnosperms?

    <p>Secondary growth</p> Signup and view all the answers

    What is the principal consequence of growth at a cellular level?

    <p>Increase in the amount of protoplasm</p> Signup and view all the answers

    What would happen if the meristem ceases to divide?

    <p>The plant will experience limited growth</p> Signup and view all the answers

    What causes the increase in the girth of organs in dicotyledonous plants and gymnosperms?

    <p>Vascular cambium</p> Signup and view all the answers

    Why is it possible for plants to have unlimited growth throughout their life?

    <p>Presence of specialized cells that can divide and self-perpetuate</p> Signup and view all the answers

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