The diagram shows a xylem vessel in a root and four adjacent parenchyma cells.
As water moves up the xylem vessel, it is replaced by water from cell D. Water in cell D is replaced by water in cell C, resulting in a flow of water from cell A to the xylem.
Which cell has the least negative water potential?
A
2 )
B
3 )
C
4 )
D
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