Overview of Plant Structure and Transport
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Questions and Answers

What is the main purpose of the vascular system in plants?

  • To store excess energy for later use
  • To provide support and anchorage to the plant
  • To transport water, mineral nutrients, and photosynthetic products throughout the plant body (correct)
  • To produce seeds for reproduction

    • What is the function of the middle lamella in plant cells?

  • Producing energy for cellular processes
  • Facilitating cell growth and enlargement
  • Preventing cell migrations by cementing walled cells together (correct)
  • Absorbing water and mineral nutrients

    • What distinguishes secondary cell walls from primary cell walls in plants?

  • Secondary cell walls do not contain a middle lamella
  • Secondary cell walls are primarily involved in photosynthesis
  • Secondary cell walls are characteristic of young, growing cells
  • Secondary cell walls are thicker and stronger than primary walls (correct)

    • Which organ of a plant is primarily responsible for photosynthesis?

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

    What are the functions of plant roots?

    <p>Anchorage and absorption of water and mineral nutrients</p> Signup and view all the answers

    What distinguishes gymnosperms from angiosperms?

    <p>Gymnosperms are less dominant compared to angiosperms</p> Signup and view all the answers

    What gives secondary cell walls their strength and toughness?

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

    Where are the most active meristems located in a young plant?

    <p>At the tips of the stem and the root</p> Signup and view all the answers

    What is the phase of plant development that gives rise to new organs and the basic plant form called?

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

    Which of the following is NOT one of the three major tissue systems recognized in plants?

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

    What gives rise to secondary xylem (wood) and secondary phloem?

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

    What organelle contains the genetic information primarily responsible for regulating the metabolism, growth, and differentiation of the cell?

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

    What is the double membrane surrounding the nucleus called?

    <p>Nuclear envelope</p> Signup and view all the answers

    Which organelles contain their own DNA but import most of their proteins from the cytosol?

    <p>Chloroplasts and mitochondria</p> Signup and view all the answers

    What material allows the cell to take up and retain certain substances while excluding others?

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

    Which part of a plant gives rise to branch shoots containing apical meristems?

    <p>Axillary buds</p> Signup and view all the answers

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