Which option gives the correct pair of growth-based and non-growth-based movements in plants?
Answer and explanation
Correct answer: Stem bending towards light and folding of Mimosa leaf
The governing concept is the distinction between growth-dependent and growth-independent plant movements. A stem bends toward light through unequal growth, so it is a growth movement. A Mimosa leaf folds rapidly because of changes in cell turgor at the pulvinus, not because of new growth, so it is non-growth-based. The pair in option A therefore correctly represents both types.
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What is the correct answer to this question?
Stem bending towards light and folding of Mimosa leaf
Why is this the correct answer?
The governing concept is the distinction between growth-dependent and growth-independent plant movements. A stem bends toward light through unequal growth, so it is a growth movement. A Mimosa leaf folds rapidly because of changes in cell turgor at the pulvinus, not because of new growth, so it is non-growth-based. The pair in option A therefore correctly represents both types.
Which subject and chapter does this question cover?
This is a Class 10 Science question. Chapter: World of Living. Topic: Control and Coordination.
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