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Science 7—Chapter 8 Plant Processes an Reproduction. Lesson 2 Plant Responses. plant hormones produced by root tips that increase the rate of cell division. cytokinins. plant hormones produced by root tips that increase the rate of cell division.
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Science 7—Chapter 8Plant Processes an Reproduction Lesson 2 Plant Responses
plant hormones produced by root tips that increase the rate of cell division
cytokinins • plant hormones produced by root tips that increase the rate of cell division
ethylene • plant hormone that helps stimulate the ripening of fruit
any changes in an organism’s environment that cause a response
stimulus • any changes in an organism’s environment that cause a response
gravitropism • the response of a plant to gravity
a plant’s response to the number of hours of darkness in its environment
photoperiodism • a plant’s response to the number of hours of darkness in its environment
plant hormones that increase the rate of cell division and cell elongation
gibberellins • plant hormones that increase the rate of cell division and cell elongation
thigmotropism • the response of a plant to touch
a response that results in plant growth toward or away from a stimulus
tropism • a response that results in plant growth toward or away from a stimulus
auxin • plant hormone responsible for phototropism
phototropism • the growth of a plant toward or away from light