If the growing coleoptile tip is cut,what hap | vedclass

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Question

(A) Phototropism is the growth movement of a plant part in response to a light stimulus,primarily mediated by the hormone auxin produced in the coleop

Vedclass · Accepted Answer

Phototropism stops

Vedclass · Answer

(A) Phototropism is the growth movement of a plant part in response to a light stimulus,primarily mediated by the hormone auxin produced in the coleoptile tip.When the growing coleoptile tip is removed,the source of auxin is eliminated.Since auxin is essential for the differential growth required for phototropic bending,the removal of the tip results in the cessation of phototropism.Therefore,the correct answer is $A$.

Column-$I$	Column-$II$
$A$. Natural auxin	$1$. $IAA$
$B$. Synthetic auxin	$2$. $NAA$
	$3$. $IBA$
	$4$. $2,4-D$

If the growing coleoptile tip is cut,what happens to phototropism?

Similar Questions

Match the following columns.
Column-$I$ Column-$II$
$A$. Natural auxin $1$. $IAA$
$B$. Synthetic auxin $2$. $NAA$
$3$. $IBA$
$4$. $2,4-D$

Choose the correct matching sequence.

The positive geotropic response of a root is:

$A$: If a plant is kept horizontally,auxin accumulates on the lower surface.
$R$: Displacement of statoliths and other cell organelles to the lower surface modifies the translocation pattern of auxin.

Which of the following trace elements is essential for auxin synthesis in plants?

Which hormone is used to create a hedge in a garden?

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