Bulk flow

Question

Bulk flow

Quizplus · Accepted Answer

Bulk flow moves water and phloem sap in plants through gradients in pressure potential, which is generated by the pumping action of the plant. This mechanism enables efficient long-distance transport of water and nutrients throughout the plant. Option A is incorrect because there is no gradient involved in bulk flow of water between cells. Option B is incorrect because bulk flow does not rely on gravity. Option D is incorrect because osmosis is a passive process and cannot account for the pressure potential required for bulk flow. Option E is incorrect because bulk flow is sufficient for transporting both water and phloem sap through the xylem and phloem, respectively.

Bulk Flow