Which is the correct order of events during auxin-mediated cell elongation?

Which is the correct order of events during auxin-mediated cell
elongation?

Proton pump gene expression → expansin activation → ATP
hydrolysis → H+ movement into cell wall

expansin activation → proton pump gene expression →
H+ movement into cell wall → ATP hydrolysis

ATP hydrolysis → expansin activation → proton pump gene
expression → H+ movement into cell wall

Proton pump gene expression → ATP hydrolysis → H+
movement into cell wall → expansin activation

Which is the correct order of events during auxin-mediated cell
elongation?

Proton pump gene expression → expansin activation → ATP
hydrolysis → H+ movement into cell wall

expansin activation → proton pump gene expression →
H+ movement into cell wall → ATP hydrolysis

ATP hydrolysis → expansin activation → proton pump gene
expression → H+ movement into cell wall

Proton pump gene expression → ATP hydrolysis → H+
movement into cell wall → expansin activation

Which is the correct order of events during auxin-mediated cell
elongation?
Which is the correct order of events during auxin-mediated cell
elongation?

Proton pump gene expression → expansin activation → ATP
hydrolysis → H+ movement into cell wall

expansin activation → proton pump gene expression →
H+ movement into cell wall → ATP hydrolysis

ATP hydrolysis → expansin activation → proton pump gene
expression → H+ movement into cell wall

Proton pump gene expression → ATP hydrolysis → H+
movement into cell wall → expansin activation

Proton pump gene expression → expansin activation → ATP
hydrolysis → H+ movement into cell wall

expansin activation → proton pump gene expression →
H+ movement into cell wall → ATP hydrolysis

ATP hydrolysis → expansin activation → proton pump gene
expression → H+ movement into cell wall

Proton pump gene expression → ATP hydrolysis → H+
movement into cell wall → expansin activation

Proton pump gene expression → expansin activation → ATP
hydrolysis → H+ movement into cell wall

expansin activation → proton pump gene expression →
H+ movement into cell wall → ATP hydrolysis

ATP hydrolysis → expansin activation → proton pump gene
expression → H+ movement into cell wall

Proton pump gene expression → ATP hydrolysis → H+
movement into cell wall → expansin activation

Proton pump gene expression → expansin activation → ATP
hydrolysis → H+ movement into cell wall

expansin activation → proton pump gene expression →
H+ movement into cell wall → ATP hydrolysis

ATP hydrolysis → expansin activation → proton pump gene
expression → H+ movement into cell wall

Proton pump gene expression → ATP hydrolysis → H+
movement into cell wall → expansin activation

Proton pump gene expression → expansin activation → ATP
hydrolysis → H+ movement into cell wall
Proton pump gene expression → expansin activation → ATP
hydrolysis → H+ movement into cell wall +

expansin activation → proton pump gene expression →
H+ movement into cell wall → ATP hydrolysis
expansin activation → proton pump gene expression →
H+ movement into cell wall → ATP hydrolysis +

ATP hydrolysis → expansin activation → proton pump gene
expression → H+ movement into cell wall
ATP hydrolysis → expansin activation → proton pump gene
expression → H+ movement into cell wall +

Proton pump gene expression → ATP hydrolysis → H+
movement into cell wall → expansin activation
Proton pump gene expression → ATP hydrolysis → H+
movement into cell wall → expansin activation +

The correct order is :Proton pump gene expression → ATP
hydrolysis → H+ movement into cell wall → expansin activation
Reason:Auxin first stimulates proton pump gene expression that
together with ATP hydrolysis releases hydrogen ions into the cell
wall.This reduces the pH of the cell wall and activates expansin
enzyme.Expansins then loosens the cellulose of the cell wall
allowing the cell to elongate.

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