If auxin distribution is artificially kept equal in a plant why may stem bending reduce even with one sided light?
Answer and explanation
Correct answer: Because growth of cells on both sides will remain nearly equal
Phototropic bending requires differential growth on the two sides of a shoot. Normally, one-sided light changes auxin distribution, causing greater elongation on one side and bending. If auxin is artificially maintained at equal levels, both sides receive a similar growth stimulus, so their elongation remains nearly equal and curvature decreases. Light can still enter the plant; therefore option A is correct.
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What is the correct answer to this question?
Because growth of cells on both sides will remain nearly equal
Why is this the correct answer?
Phototropic bending requires differential growth on the two sides of a shoot. Normally, one-sided light changes auxin distribution, causing greater elongation on one side and bending. If auxin is artificially maintained at equal levels, both sides receive a similar growth stimulus, so their elongation remains nearly equal and curvature decreases. Light can still enter the plant; therefore option A is correct.
Which subject and chapter does this question cover?
This is a Class 10 Science question. Chapter: Control and Coordination. Topic: Plant hormones.
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