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Osmosis and Tonicity
Worksheet
Grade Level
Biology
10.28 Osmosis and Tonicity
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Guard cells accumulate potassium ions, lowering their water potential. What is expected?
A
Water leaves guard cells, they become flaccid, and the stoma opens.
B
Water cannot move into plant cells with cell walls.
C
Water enters guard cells, they become turgid, and the stoma opens.
D
Potassium moves water out of guard cells by osmosis.
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