Capillary Action in Plants: How Water Rises
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Questions and Answers

What is the main reason behind the upward flow of a liquid in capillary action?

  • The cohesive forces of the liquid are stronger than the adhesive forces.
  • The surface tension of the liquid is weaker than the cohesive forces.
  • The adhesive forces of the liquid are stronger than the cohesive forces. (correct)
  • The liquid has a higher density than the solid.

    • What is the term for the ability of a liquid to stick to itself molecularly?

  • Adhesion
  • Surface Tension
  • Cohesion (correct)
  • Capillary Action

    • What is the result of the combination of cohesion, adhesion, and surface tension in capillary action?

  • A downward flow of the liquid
  • An upward flow of the liquid (correct)
  • A horizontal flow of the liquid
  • No flow of the liquid

    • Why does the water seemingly crawl up the pant leg in the example given?

    <p>Due to the capillary action of the water</p> Signup and view all the answers

    What is the term for the intermolecular forces within a liquid that work together to give liquid a top layer that works as a film?

    <p>Surface Tension</p> Signup and view all the answers

    What is the necessary condition for capillary action to work effectively?

    <p>The adhesive forces of the liquid must be stronger than the cohesive forces</p> Signup and view all the answers

    What is the phenomenon in which a liquid seemingly defies gravity to flow upward within a solid?

    <p>Capillary Action</p> Signup and view all the answers

    What is the primary function of capillary action in plants?

    <p>To distribute water to every inch of the plant</p> Signup and view all the answers

    What property of water molecules allows them to stick to other objects?

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

    What can prevent capillary action from occurring in plants?

    <p>Gravity and slow capillary speed</p> Signup and view all the answers

    What is the term for the process of water molecules climbing the walls of a plant's stem?

    <p>Transpiration pull</p> Signup and view all the answers

    What is the effect of a larger opening on the speed of water traveling upward through a plant?

    <p>It decreases the speed</p> Signup and view all the answers

    What is the purpose of the demonstration involving a cup of water with food dye and a celery stalk?

    <p>To visualize the concept of water traveling upward through a plant</p> Signup and view all the answers

    Why is capillary action important for plant growth?

    <p>It enables plants to grow more than a few inches tall</p> Signup and view all the answers

    What is an example of a product that relies on capillary action to function correctly?

    <p>A fountain pen</p> Signup and view all the answers

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