What is growth of plants towards light called?
Answer and explanation
Correct answer: Phototropism
The governing concept is tropic movement, in which a plant grows directionally in response to an external stimulus. When the stimulus is light and growth occurs toward it, the response is called positive phototropism. For example, a young shoot bends toward a light source as auxin distribution promotes greater growth on the shaded side. Therefore, option A is correct; geotropism responds to gravity, hydrotropism to water, and chemotropism to chemicals.
Frequently asked questions
What is the correct answer to this question?
Phototropism
Why is this the correct answer?
The governing concept is tropic movement, in which a plant grows directionally in response to an external stimulus. When the stimulus is light and growth occurs toward it, the response is called positive phototropism. For example, a young shoot bends toward a light source as auxin distribution promotes greater growth on the shaded side. Therefore, option A is correct; geotropism responds to gravity, hydrotropism to water, and chemotropism to chemicals.
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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