Monday, March 28, 2011

2.79 Plants and stimuli


-Stimuli are changes in the environment
-Plants have receptors which detect the stimuli and turn those into a response
-The responses often take the form of growth
-There are different types of tropisms (growth from stimuli)
-A tropism involving a response to light is called a phototropism and a response to gravity is called a geotropism
-The connection between the receptor and the response is plant hormones

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