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.
Frequently asked questions
What is the correct answer to this question?
Root grows in the direction of gravity
Why is this the correct answer?
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.
Which subject and chapter does this question cover?
This is a Class 10 Science question. Chapter: Control and Coordination. Topic: Plant hormones.
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