This Catalyst article explains how scientists came to understand plants' sensitivity to external stimuli and their ability to move. Mimosa pudica is a good example of a plant which folds its leaves in response to touch or heat. However, the folding movement of the leaves is very unusual and not found in many other plants. In fact, all plants do move and show sensitivity, but they do it very slowly.
This article is from Catalyst: GCSE Science Review 2011, Volume 22, Issue 1.
Catalyst is a science magazine for students aged 14-19 years. Annual subscriptions to print copies of the magazine can be purchased from Mindsets.
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