Which one of the following is a gaseous plant homone?
Correct answer: D. Ethylene
- A. Auxins
- B. Gibberellins
- C. Cytokinis
- D. Ethylene
Explanation
Ethylene is a gaseous plant hormone that helps regulate various processes in plants. It's involved in fruit ripening, leaf senescence, and even the response to stress. When plants produce ethylene, it can affect nearby plants, causing them to undergo similar changes. It's like a chemical signal that plants use to communicate with each other.
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About Plant Growth Regulators
Plant growth regulators are chemical messengers that control growth, development and responses to the environment. The topic covers auxins, gibberellins, cytokinins, abscisic acid and ethylene, including cell elongation, apical dominance, tropisms, seed germination, dormancy, fruit ripening and leaf fall, with growth promoters distinguished from inhibitors.
Practise Forms and Functions of Plants
272 free Forms and Functions of Plants MCQs from Biology, each with the correct answer and an explanation. Unlimited attempts, no account needed.
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