Why does the stem generally show negative geotropism?
Answer and explanation
Correct answer: Because it grows upward opposite to gravity
The governing concept is the direction of growth relative to gravity. Gravity pulls downward, whereas the stem generally elongates upward toward the surface and light. Growth opposite to the direction of gravity is called negative geotropism, so option A is correct. Downward growth would be positive geotropism, movement relative to water concerns hydrotropism, and a stem does grow rather than remaining inactive.
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What is the correct answer to this question?
Because it grows upward opposite to gravity
Why is this the correct answer?
The governing concept is the direction of growth relative to gravity. Gravity pulls downward, whereas the stem generally elongates upward toward the surface and light. Growth opposite to the direction of gravity is called negative geotropism, so option A is correct. Downward growth would be positive geotropism, movement relative to water concerns hydrotropism, and a stem does grow rather than remaining inactive.
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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