Plant Hormones

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Questions and Answers

Which plant hormone is responsible for making roots grow away from light and towards the pull of gravity?

  • Auxins (correct)
  • Cytokinins
  • Gibberellin
  • Ethylene

What is the main function of ethylene in plants?

  • To make roots grow away from light
  • To cause a dramatic increase in plant size
  • To stimulate cell division
  • To stimulate fruit ripening (correct)

Which plant hormone stimulates cell division and makes dormant seeds sprout?

  • Auxins
  • Ethylene
  • Cytokinins (correct)
  • Gibberellin

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