The diagram presents a model that can be used to illustrate mass flow. X and Y are each filled with sucrose solutions of different concentrations, so water moves into or out of X and Y by osmosis or because of hydrostatic pressure. Sucrose solution then passes through tube T connecting X and Y. Which description is correct?
- Awater potential in X compared with Y: less negative; direction of movement of sucrose solution in tube T: from X to Y
- Bwater potential in X compared with Y: less negative; direction of movement of sucrose solution in tube T: from Y to X
- Cwater potential in X compared with Y: more negative; direction of movement of sucrose solution in tube T: from X to Y
- Dwater potential in X compared with Y: more negative; direction of movement of sucrose solution in tube T: from Y to X