Which of the following statements is false about bulk flow?

Which of the following statements is false about bulk flow? 





A) It is driven primarily by pressure potential.
B) It is more effective than diffusion over distances greater than 100 µm.
C) It depends on a difference in pressure potential at the source and sink.
D) It depends on the force of gravity on a column of water.
E) It may be the result of either positive or negative pressure potential.






Answer: D


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