NEET BIOLOGY

Detailed explanation-1: -The movement of the plant due to touch is called thigmotropic movement. Thigmotropism is a directional growth movement which occurs as a mechanosensory response to a touch stimulus.

Detailed explanation-2: -The correct option is A thigmotropism. The curling of tendrils is a growth movement induced due to contact or touch. Such a movement is called thigmotropic movement.

Detailed explanation-3: -Also referred to as haptotropism, thigmotropism is the movement or change in orientation of a plant’s growth as a reaction to touch.

Detailed explanation-4: -Thigmotropism is the directional response of a plant organ to touch or physical contact with a solid object. This directional response is generally caused by the induction of some pattern of differential growth. This phenomenon is clearly illustrated by the climbing tendrils of some plants, such as the sweet pea.

Detailed explanation-5: -Growth movement of plants in response to touch stimulus is called thigmotropism, e.g., tendrils of Sweet Pea coiling around a support.