Which of the following movements is not relat | vedclass

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(A) Auxin is a plant hormone primarily responsible for growth-related movements such as phototropism (movement of shoot towards light) and geotropism

Vedclass · Accepted Answer

Nyctinastic leaf movement

Vedclass · Answer

(A) Auxin is a plant hormone primarily responsible for growth-related movements such as phototropism (movement of shoot towards light) and geotropism (movement of roots towards soil). Nyctinastic movements (sleep movements) are primarily caused by changes in turgor pressure within the pulvinus cells,not by auxin-mediated growth. Therefore,nyctinastic leaf movement is not related to changes in auxin levels.

Which of the following movements is not related to changes in auxin levels?

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