Plant Growth and Development
Nagaland Board · Class 11 · Biology
Practice quiz for Plant Growth and Development — Nagaland Board Class 11 Biology. MCQs and questions with answers to test your preparation.
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Quick Quiz: Plant Growth and Development
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What is the primary characteristic of plant growth?
Which plant growth regulator promotes cell division?
Which meristem contributes to the primary growth of plants?
What does the term 'differentiation' refer to in plant development?
Sample Questions
Which plant growth regulator is known as the 'stress hormone'?
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Abscisic acid
Abscisic acid helps plants tolerate stress by inducing stomatal closure and promoting seed dormancy.
What is the first step in plant growth?
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Seed germination
Seed germination occurs when favorable environmental conditions allow the seed to begin metabolic activities and growth.
Which gas is a plant growth regulator that promotes fruit ripening?
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Ethylene
Ethylene is a gaseous hormone that plays a crucial role in fruit ripening and senescence.
What are the three phases of growth in plants?
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Meristematic, elongation, maturation
These phases represent the progression of cell development from active division to final specialization.
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