Plant responses to stimuli vary in speed. The sensitive plant exhibits a quick response to touch, showcasing rapid movement.
How does the speed of plant responses to stimuli vary, and what example illustrates a quick response in plants?
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Plant responses to stimuli vary in speed, ranging from rapid movements to slower developmental changes. Quick responses, known as rapid turgor movements, can occur within seconds. An example is the rapid closure of the sensitive plant’s (Mimosa pudica) leaflets upon touch, an adaptive defense mechanism against herbivores. This rapid response is facilitated by changes in cell turgor pressure, leading to the collapse of specific cells and the folding of leaflets. While some plant responses are relatively slow, rapid turgor movements showcase the diverse and dynamic ways in which plants can quickly adjust to environmental stimuli.