how does a plant bend towards the light?
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The higher concentration of auxin on the shady side causes the plant cells on that side to grow more so it bends toward the light. Because light is the energy source for plant growth, plants have evolved highly sensitive mechanisms for perceiving light. ... This bending toward light is called phototropism.
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As we know from looking at plants on a windowsill, they grow toward the sunlight to be able to generate energy by photosynthesis. Now scientists have provided definitive insights into the driving force behind this movement -- the plant hormone auxin
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