‘Which hormone is produced by ripened fruit?
Last updated May 30, 2026
Correct Answer:
Option B —
Cytokinin
Key Details About EthyleneNature: Ethylene is a unique plant hormone because it exists as a gaseous hormone.
Function: It is primarily responsible for the ripening of fruits and the abscission (shedding) of leaves and flowers.
Climacteric Effect: As certain fruits ripen (like bananas, apples, and tomatoes), they release large amounts of ethylene. This gas triggers neighboring fruits to ripen as well, which is why a single ripe banana can speed up the ripening of other fruits stored nearby.
Functions of Other Options:
Auxin: Promotes cell elongation, apical dominance (growth of the central stem), and root initiation.
Cytokinin: Promotes active cell division (cytokinesis), delays aging (senescence) in leaves, and helps overcome apical dominance.
Abscisic acid (ABA): Known as the stress hormone. It inhibits plant growth, induces seed dormancy, and stimulates the closing of stomata during water stress to prevent water loss.
Answer verified by Quintessence Classes faculty — Karan Nagar, Srinagar.
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