Growth of roots towards water is an example of which tropism?
Answer and explanation
Correct answer: Hydrotropism
Hydrotropism is the directional growth of a plant part in response to water or moisture. When roots grow toward a region containing more water, they display positive hydrotropism; therefore option A is correct. Phototropism is caused by light, geotropism by gravity, and thigmotropism by touch. Although roots also respond to gravity, the stimulus named here is water.
Frequently asked questions
What is the correct answer to this question?
Hydrotropism
Why is this the correct answer?
Hydrotropism is the directional growth of a plant part in response to water or moisture. When roots grow toward a region containing more water, they display positive hydrotropism; therefore option A is correct. Phototropism is caused by light, geotropism by gravity, and thigmotropism by touch. Although roots also respond to gravity, the stimulus named here is water.
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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