Biology
Shreya placed a plant near the window in her kitchen. She observed that the stem started growing towards the side from where sunlight was coming. Which of the following is/are involved in the process described above?
(a) Auxin
(b) Gibberellin
(c) Cytokinin
(d) Abscisic acid
- Only a
- Only a and c
- Only a, b and c
- Only a, c and d
Chemical Coordination in Plants
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Answer
Only a
Reason — The apical growth of the plant is due to auxin. The plant grows towards the light due to phototropism.
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