Question

Cucurbitaceae is good example of

• A. Haptotropism
• B. Thigmotropism
• C. Both (A) and (B)
• D. None of the above

Answer 1

The correct option is C Both (A) and (B)

Plants of Family Cucurbitaceae have weak stems supported by tendrils. Tendrils are sensitive to touch and show thigmotropism, i.e., growth movement in response to touch. Haptotropism is a related term and essentially has same meaning, i.e., the movement of parts of a plant in response to a touch stimulus. In case of family Cucurbitaceae, these terms are used to describe growth of tendrils which support weak stem of the plants of this family.