If a root grows towards water and away from light at the same time, which conclusion is correct?
Answer and explanation
Correct answer: A root can show hydrotropism and negative phototropism simultaneously
Plant organs can respond to more than one environmental stimulus. Growth towards water is called hydrotropism, while growth away from light is negative phototropism. These responses may occur together because the root is integrating directional information from water and light rather than responding to only one stimulus. Therefore option A is correct; the other choices incorrectly apply animal nervous functions or restrict the root to sound alone.
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What is the correct answer to this question?
A root can show hydrotropism and negative phototropism simultaneously
Why is this the correct answer?
Plant organs can respond to more than one environmental stimulus. Growth towards water is called hydrotropism, while growth away from light is negative phototropism. These responses may occur together because the root is integrating directional information from water and light rather than responding to only one stimulus. Therefore option A is correct; the other choices incorrectly apply animal nervous functions or restrict the root to sound alone.
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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