Question:
Ethylene is a phytohormone and also: A. Known as fruit ripening hormone B. Causes leaf epinasty in tomato, potato and pea C. Induces flowering in pine apple and mango D. Promotes formation of male flowers and suppresses the number of female flowers considerably E. Promotes abscission of leaves in plants. Choose the correct answer from the options given below:
Ethylene is a phytohormone and also: A. Known as fruit ripening hormone B. Causes leaf epinasty in tomato, potato and pea C. Induces flowering in pine apple and mango D. Promotes formation of male flowers and suppresses the number of female flowers considerably E. Promotes abscission of leaves in plants. Choose the correct answer from the options given below:
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Review the specific roles of ethylene in plant physiology for accuracy.
Updated On: May 26, 2026
- A, B, C, D only
- B, C, D, E only
- A, C, D, E only
- A, B, C, E only
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The Correct Option is D
Solution and Explanation
Step 1: Concept
Phytohormones and their functions in plants
Step 2: Meaning
Ethylene is a type of phytohormone with multiple roles in plant growth and development.
Step 3: Analysis
Option A (Known as fruit ripening hormone) - True, ethylene is known to promote fruit ripening. Option B (Causes leaf epinasty in tomato, potato and pea) - False, this effect is associated with auxins, not ethylene. Option C (Induces flowering in pineapple and mango) - False, gibberellins are primarily responsible for inducing flowering. Option D (Promotes formation of male flowers and suppresses the number of female flowers considerably) - True, ethylene plays a role in sex expression during flower development. Option E (Promotes abscission of leaves in plants) - True, ethylene is involved in leaf drop.
Step 4: Conclusion
The correct options are A, B, C, and E with the exception that B is false. Therefore, the accurate combination should include A, D, and E. Final Answer: (D)
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