Sugar is converted into starch when the pH of | vedclass

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Question

(A) According to the starch-sugar interconversion theory proposed by Sayre,the opening and closing of stomata are regulated by the $pH$ of guard cells

Vedclass · Accepted Answer

$H^+$ ions concentration of guard cells decreases

Vedclass · Answer

(A) According to the starch-sugar interconversion theory proposed by Sayre,the opening and closing of stomata are regulated by the $pH$ of guard cells.When the $pH$ of guard cells increases (becomes more alkaline),the enzyme phosphorylase converts glucose$-1-$phosphate into starch,which is insoluble and leads to the closing of stomata.An increase in $pH$ corresponds to a decrease in the concentration of $H^+$ ions in the guard cells.Therefore,sugar is converted into starch when the $H^+$ ion concentration decreases.

Sugar is converted into starch when the $pH$ of guard cells increases,which is associated with:

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