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NEET Previous Year Question

$Phototropic curvature is the result of uneven distribution of :$

Topic: NEET PYQ

Answer: D. Full step-by-step solution below.

A $Gibberellin$
B $Phytochrome$
C $Cytokinins$
D $Auxin$

Correct answer: D

Solution

(d) Phototropic curvature occurs due to the unequal distribution of auxin. Auxin accumulates on the shaded side, causing more cell elongation there and bending the plant towards light.

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