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Tropism

Published on Nov 20, 2015

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PRESENTATION OUTLINE

GRAVITROPISM

WHEN A PLANT TURNS OR BENDS BECAUSE OF GRAVITY

CHEMOTROPISM

ESPECIALLY OF A PLANT, IN RESPONSE TO A PARTICULAR SUBSTANCE

PHOTOTROPISM

WHEN A PLANT POINTS TOWARD A SOURCE OF LIGHT
Photo by r_neches

THERMOTROPISM

THE TURNING OR BENDING OF A PLANT OR ORGANISM WHEN IT POINTS TO HEAT

HYDROTROPISM

WHEN ROOTS GROW TOWARD OR AWAY FROM WATER
Photo by thienzieyung

THIGMOTROPISM

WHEN A PLANT OR ORGANISM BENDS AND TURNS IN RESPONSE TO A TOUCH STIMULUS