The root of a plant is:(i) positively phototropic but negatively geotropic(ii) positively geotropic but negatively phototropic(iii) negatively phototropic but positively hydrotropic (iv) negatively hydrotropic but positively phototropic(a) (i) and (ii)     (b) (ii) and (iii)     (c) (iii) and (iv)     (d) (i) and (iv)

(b) (ii) and (iii).

 The root of a plant grows in response to gravity and moisture inside the soil. Hence it is positively geotropic and positively hydrotropic, but negatively phototropic because root doesn't show any response to light rather shoot shows phototropism.

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Updated on: 23-Mar-2023

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