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PUCET (Punjab) Ethylene — practice questions

Explore 1 free Ethylene questions in PUCET (Punjab) Biology. Open each question or exercise to read its content, reference answers and available explanation.

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Ethylene questions and exercises with answers

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Which hormone is gaseous and promotes **fruit ripening**?Read the answer and worked solution →

Worked practice questions

Which hormone is gaseous and promotes **fruit ripening**?

  1. Auxin
  2. Cytokinin
  3. Ethylene (the 'ripening hormone')
  4. ABA
Show answer and solution

Correct answer: C. Ethylene (the 'ripening hormone')

Ethylene (C₂H₄) — only gaseous plant hormone. Triggers fruit ripening (especially climacteric fruits like banana, mango, tomato), leaf abscission, flower senescence. Commercial banana ripening uses ethephon (releases ethylene).

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