STU1043 Introduction to Plant Physiology LU7 Quiz
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Questions and Answers

What is the origin of plant growth?

  • Roots and seeds
  • Flowers and fruits
  • Stems and leaves
  • Buds in regions called meristems (correct)

    • What is the definition of growth in the context of plant physiology?

  • A reversible increase in the size of an organ
  • A permanent and irreversible increase in size of an organ or cell (correct)
  • An increase in the metabolic rate of a plant
  • A temporary increase in cell count

    • What are the two classes of meristems involved in plant growth?

  • Root and stem
  • Floral and fruit
  • Apical and axile (correct)
  • Leaf and seed

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

    <p>Due to the presence of meristems at certain locations</p> Signup and view all the answers

    What accompanies plant growth and occurs at the expense of energy?

    <p>Metabolic processes</p> Signup and view all the answers

    What is the term used to describe the permanent and irreversible increase in size of a plant organ or cell?

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

    What is the primary purpose of water in plant growth?

    <p>To provide the medium for enzymatic activities</p> Signup and view all the answers

    What is the function of turgidity in plant cells?

    <p>Aids in extension growth in cells</p> Signup and view all the answers

    What is the primary role of oxygen in plant growth?

    <p>To release energy for growth activities</p> Signup and view all the answers

    What is the purpose of nutrients in plant growth?

    <p>To support synthesis of protoplasm</p> Signup and view all the answers

    What causes the early development of angiosperm embryo to become dormant after fertilization?

    <p>Formation of seed coat enclosing dormant embryo and stored food source</p> Signup and view all the answers

    What stimulates seed germination in many plants?

    <p>Resumption of metabolic activities and growth often trigged by water</p> Signup and view all the answers

    Which process is responsible for resumption of metabolic activities and growth in seed germination?

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

    What triggers the development of pollen grains from microspores in angiosperm reproduction?

    <p>Transferring pollen to stigma</p> Signup and view all the answers

    In angiosperm reproduction, what is the primary purpose of double fertilization involving two sperm cells?

    <p>Formation of embryo and endosperm</p> Signup and view all the answers

    What is the function of turgidity in plant cells?

    <p>Promotion of cell enlargement</p> Signup and view all the answers

    What is the primary role of oxygen in plant growth?

    <p>Energy release for growth activities</p> Signup and view all the answers

    What is the primary factor that determines the distribution and adaptation of plant populations in their habitat?

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

    In plant physiology, what is the term used to describe the irreversible increase in size of an organ or its part?

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

    What is the role of meristems in plant growth and development?

    <p>Producing tissues for root, stem, and leaf development</p> Signup and view all the answers

    What is the significance of the indeterminate nature of plant growth?

    <p>It enables plants to have unlimited growth throughout their life</p> Signup and view all the answers

    What usually accompanies plant growth and occurs at the expense of energy?

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

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