Based on Figure 7.19 in your textbook, which of these experimental treatments would increase the rate of sucrose transport into the cell?
A)decreasing extracellular sucrose concentration
B)decreasing extracellular pH
C)decreasing cytoplasmic pH
D)adding an inhibitor that blocks the regeneration of ATP
E)adding a substance that makes the membrane more permeable to hydrogen ions

Question

Quizplus · Accepted Answer

Decreasing extracellular pH increases the concentration of hydrogen ions outside the cell, which can enhance the proton gradient used by sucrose transporters to drive sucrose into the cell via symport mechanisms.