ea ac 3. An experiment is designed to study the mechanism of sucrose uptake by plant cells. Cells are immersed in a sucrose solution, and the pH of the solution is monitored with a pH meter. Samples of the cells are taken at intervals, and the sucrose concentration in the sampled cells is measured. The measurements show that sucrose uptake by cells correlates with a rise in pH of the surrounding solution. The magnitude of the pH change is proportional to the starting concentration of sucrose in the extracellular solution. Propose a. hypothesis accounting for these results. b. Suggest an additional experiment to test your hypothesis. c. Explain what mechanism may be responsible for this action.​