Plant Root Modifications Quiz
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Questions and Answers

What is the primary function of stilt roots in plants?

  • To provide mechanical support. (correct)
  • To facilitate gas exchange with the environment.
  • To store food for the plant.
  • To absorb excess water from the soil.

    • Which type of root modification is primarily found in plants that grow in swampy areas?

  • Respiratory roots (Pneumatophores) (correct)
  • Prop roots
  • Fibrous roots
  • Storage roots

    • What do storage roots primarily do?

  • Assist in water retention.
  • Support heavy branches of trees.
  • Store food for the plant. (correct)
  • Facilitate reproduction.

    • What characteristic is unique to prop roots among the different types of root modifications?

    <p>They hang in the air before entering the soil. (B)</p> Signup and view all the answers

    Which of the following examples represents a plant with storage roots?

    <p>Carrot (B)</p> Signup and view all the answers

    Which type of root functions primarily through absorption of moisture from the atmosphere?

    <p>Velamen roots (C)</p> Signup and view all the answers

    What distinguishes complete parasites from partial parasites in terms of their root structures?

    <p>Complete parasites totally depend on other plants for nutrients (B)</p> Signup and view all the answers

    Which root type typically contains bacteria that fix atmospheric nitrogen?

    <p>Nodular roots (B)</p> Signup and view all the answers

    In which category do roots that perform photosynthesis fall?

    <p>Photosynthetic roots (A)</p> Signup and view all the answers

    Which plant would most likely possess haustorial roots?

    <p>Cuscuta (D)</p> Signup and view all the answers

    Flashcards

    Root Modification

    Roots that are modified to perform functions beyond absorption and conduction, like storage, support, or respiration.

    Storage Roots

    Roots that store food, often becoming swollen as a result.

    Stilt Roots

    Roots that grow from the lower nodes of a stem, providing additional support to the plant.

    Respiratory Roots

    Roots that grow vertically upwards from the base of a plant, extending into the air to absorb oxygen for respiration.

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    Prop Roots

    Roots that grow from branches of trees and hang in the air, providing extra support for the heavy branches.

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    What are Velamen roots?

    These roots are found on the branches of other plants, like epiphytes, and absorb moisture from the air.

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    What are Epiphytic roots?

    These roots are found in plants like orchids that grow on other plants for support, but don't steal nutrients.

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    What are Climbing roots?

    These roots grow from the stems of climbing plants and help them attach to other plants for support.

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    What are Nodular roots?

    These roots are found in legume plants like peas and beans and house bacteria that fix nitrogen from the air.

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    What are Tap roots?

    These roots are specialized for absorbing water and nutrients from the soil, and conducting them to the rest of the plant.

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