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In which situation will negative geotropism be seen?

Answer and explanation

Correct answer: Stem growing upward

The governing concept is negative geotropism, or negative gravitropism. Negative tropism means growth away from the direction of the stimulus. Since gravity acts downward, the stem or shoot growing upward is growing opposite to gravity and therefore shows negative geotropism. Root growth toward water is hydrotropism, tendril bending is a touch response, and pollen-tube growth toward a chemical signal is chemotropism. Thus option B is correct.

Related tags

Control CoordinationGeotropismGravitropismNegative TropismControl And CoordinationWorld Of LivingScienceClass 10 Mcq

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