Question

Which hormone is responsible for ripening of fruits?
1. GA₃
2. Cytokinin
3. Acetone
4. Auxin
5. Ethylene

Answer 1

Correct Answer - Option 5 : Ethylene

The correct answer is ethylene.

• Ethylene is responsible for the ripening of fruits.

• Ethylene (C2H4) is used to prepare mustard gas (war gas).
• Ethylene (C₂H₄, also known as ethene) is a gaseous organic compound that is the simplest of the alkene chemical structures (alkenes contain a carbon-carbon double bond). 

• Auxin is a plant hormone produced in the stem tip which promotes cell elongation.
  • It moves to the darker side of the plant, causing the cells there to grow larger than corresponding cells on the lighter side of the plant.
• Cytokinin is a plant hormone that influences growth and the stimulation of cell division.
  • It is synthesized in the roots and is usually derived from adenine.