NEET BIOLOGY

Detailed explanation-1: -Thigmotropism is response of plants to touch or contact with a solid object. Tendrils feel the solid object resulting in the coiling response. This type of movement helps weak stem of vines and climbers to grow. Thus the correct answer is option C.

Detailed explanation-2: -These are examples of how plants respond to touch or wind. The movement of a plant subjected to constant directional pressure is called thigmotropism, from the Greek words thigma meaning “touch, ” and tropism, implying “direction.” Tendrils are one example of this.

Detailed explanation-3: -Thigmotropism is a directional growth movement which occurs as a mechanosensory response to a touch stimulus. Thigmotropism is typically found in twining plants and tendrils, however plant biologists have also found thigmotropic responses in flowering plants and fungi.

Detailed explanation-4: -Medical Definition thigmotropism. noun. thig·mot·ro·pism thig-ˈmä-trə-ˌpiz-əm. : a tropism in which physical contact especially with a solid or a rigid surface is the factor causing orientation of the whole organism.

Detailed explanation-5: -Thigmotropism is plant growth response to touch. An example of this tropism is the curling of a vine tendril around objects that it touches.