MCQ on Ethylene (Plant Hormone)







Ethylene, the “ripening hormone,” is a gas plants use to accelerate fruit ripening, leaf senescence, and flower petal abscission. It acts as a signal, triggering programmed cell death and promoting processes that prepare fruit for dispersal. This is an MCQ on Ethylene Plant Hormone.

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1. 
What is the primary physiological effect of ethylene in plants?

2. 
Where is ethylene primarily synthesized in plants?

3. 
What is the main role of ethylene in plant growth and development?

4. 
Which of the following is a commercial application of ethylene in agriculture?

5. 
Which hormone often works synergistically with ethylene to regulate plant growth and development?

6. 
How does ethylene induce fruit ripening in plants?

7. 
Which of the following is NOT a physiological effect of ethylene?

8. 
What is the primary role of ethylene in leaf abscission?

9. 
Which of the following is a mechanism by which ethylene regulates gene expression?

10. 
Which plant response involves the movement of ethylene towards the lower side of the stem, resulting in curvature away from light?

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MCQ on Ethylene Plant Hormone

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