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 Form 4 Biology: Response, reception and coordination questions and answers

(a) What is tropic response?
(b) State two ways by which auxins regulate growth in seedlings.

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Answer Text:
(a) It is a growth movement in plant or part of a plant in response to a unidirectional stimulus

(b) - Accelerating growth in shoots, can inhibit growth in roots in high concentration
- Promote growth in roots, can inhibit growth in shoots in low concentration.


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