Plant Hormones and Physiology Quiz
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Questions and Answers

Where are the enzymes necessary for tryptophan conversions most active?

  • Shoot meristem, young leaves, and young fruits (correct)
  • Stem nodes and petioles
  • Floral buds and stem internodes
  • Root meristem and mature leaves

    • What is the direction of polar transport of auxins in stems?

  • Random
  • Basipetal (correct)
  • Bidirectional
  • Acropetal

    • Which enzyme is responsible for the degeneration of auxins?

  • NAA synthase
  • IBA transaminase
  • IAA oxidase (correct)
  • 2,4-D decarboxylase

    • What is the main effect of high concentration of auxins in axillary buds?

    <p>Inhibition of lateral bud elongation</p> Signup and view all the answers

    Where were Gibberellins first discovered?

    <p>By Yabuta and Sumiki in 1926</p> Signup and view all the answers

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