Question
A shoot of seedling exposed to light on one side bends towards the source of light as it grows.
(a) Name the response exhibited by the shoot of the seedling.
(b) Explain how the bending towards the source of light occurs.
(a) Name the response exhibited by the shoot of the seedling.
(b) Explain how the bending towards the source of light occurs.
Answer
(a) Positive phototrophism
(b) Light causes lateral migration of auxin hormone they move to the darker side away from light side causing elongation or more growth on the dark side hence the bending / curvature towards light
(b) Light causes lateral migration of auxin hormone they move to the darker side away from light side causing elongation or more growth on the dark side hence the bending / curvature towards light
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