What does positive geotropism in roots mean?
Answer and explanation
Correct answer: Roots grow in the direction of gravity
The governing concept is geotropism, a directional growth response to gravity. The word positive means growth in the same direction as the stimulus. Since gravity acts downward, roots generally grow downward along the direction of gravitational pull; therefore they show positive geotropism. Growth toward light describes phototropism, upward growth is opposite to gravity, and roots do respond to environmental stimuli.
Frequently asked questions
What is the correct answer to this question?
Roots grow in the direction of gravity
Why is this the correct answer?
The governing concept is geotropism, a directional growth response to gravity. The word positive means growth in the same direction as the stimulus. Since gravity acts downward, roots generally grow downward along the direction of gravitational pull; therefore they show positive geotropism. Growth toward light describes phototropism, upward growth is opposite to gravity, and roots do respond to environmental stimuli.
Which subject and chapter does this question cover?
This is a Class 10 Science question. Chapter: World of Living. Topic: Control and Coordination.
