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Question

Ethylene is a

A
Gaseous hormone
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B
Gaseous enzyme
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C
Solid hormone
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D
Liquid gas mixture
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Solution

The correct option is A Gaseous hormone
Hormones are the biochemicals which target the cells/organs away from the site of their secretion. Enzymes are the biocatalysts which accelerate the bioreactions by lowering the activation energy of the reaction. Ethylene is a gaseous hormone which is involved in germination, growth, abscission, ripening and stress responses. Thus, option A is correct.

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