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What does positive geotropism in a plant root mean?

Answer and explanation

Correct answer: Root grows in the direction of gravity

Geotropism, or gravitropism, describes a plant growth response to gravity. A positive response occurs in the direction of the stimulus. Therefore, a root showing positive geotropism grows downward, along the direction of gravitational pull. Growth against gravity is negative geotropism and is typical of the shoot. Light response and touch-related shrinking describe different plant responses, so they are not correct here.

Related tags

GeotropismRootPlant HormonesControl And CoordinationScienceClass 10 Mcq

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