The rapid leaf movements resulting from a response to touch (thigmotropism)primarily involve
A) rapid growth response.
B) potassium channels.
C) nervous tissue.
D) aquaporins.
E) stress proteins.

Question

Quizplus · Accepted Answer

Rapid leaf movements resulting from thigmotropism primarily involve potassium channels. When a plant is touched or bumped, certain cells in the plant release calcium ions, which in turn activate potassium channels. The influx of potassium ions causes a rapid change in the water balance of the cells, resulting in a temporary change in turgor pressure and the rapid movement of the leaves.

The Rapid Leaf Movements Resulting from a Response to Touch