If in an experiment the stem does not bend towards light but the plant is alive, which process is more likely disturbed?
Answer and explanation
Correct answer: Unequal growth related to phototropism
The governing concept is phototropism, the directional growth response to light. In a normal shoot, auxin redistribution causes cells on the shaded side to elongate more, so the stem curves toward the light. If the plant remains alive but this bending fails, unequal growth or its hormonal control is likely disturbed. Therefore option A is correct; the other choices describe animal processes.
Frequently asked questions
What is the correct answer to this question?
Unequal growth related to phototropism
Why is this the correct answer?
The governing concept is phototropism, the directional growth response to light. In a normal shoot, auxin redistribution causes cells on the shaded side to elongate more, so the stem curves toward the light. If the plant remains alive but this bending fails, unequal growth or its hormonal control is likely disturbed. Therefore option A is correct; the other choices describe animal processes.
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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