The bending of a plant stem towards light is an example of what?
Answer and explanation
Correct answer: Phototropism
Phototropism is the directional growth of a plant part in response to light. In a stem, auxin becomes unevenly distributed and promotes greater elongation on the shaded side, so the stem bends toward the light. Therefore, option A is correct. Geotropism responds to gravity, hydrotropism to water, and chemotropism to chemicals, so those distractors describe different stimuli.
Frequently asked questions
What is the correct answer to this question?
Phototropism
Why is this the correct answer?
Phototropism is the directional growth of a plant part in response to light. In a stem, auxin becomes unevenly distributed and promotes greater elongation on the shaded side, so the stem bends toward the light. Therefore, option A is correct. Geotropism responds to gravity, hydrotropism to water, and chemotropism to chemicals, so those distractors describe different stimuli.
Which subject and chapter does this question cover?
This is a Class 10 Science question. Chapter: World of Living. Topic: Control and Coordination.
