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How is the pressure potential is both positive and negative?? Give example of it...

How is the pressure potential is both positive and negative?? Give example of it...

Grade:12th pass

1 Answers

Arun
25758 Points
3 years ago
In turgid plant cells it usually has a positive value as the entry of water causes the protoplast to push against the cell wall (see turgor). In xylem cells there is a negativepressure potential, or tension, as a result of transpiration. Water at atmosphericpressure has a pressure potential of zero.

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