NEET Biology question

Which of the following movements in plants is due to the increased concentration of auxin?

(A)Movement of shoot towards the source of lightCorrect
(B)Nyctinasty
(C)Movement of sunflower towards the sun
(D)All of the above

Answer: (A)

Solution

Phototropic bending of the shoot toward light is caused by a higher auxin concentration accumulating on the shaded side, stimulating greater elongation there; nyctinastic "sleep" movements are turgor-driven nastic movements

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Question ID VK-114106