Ions are absorbed from the soil by both passive and active transport, but ______ transport accounts for the majority of the uptake.
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Correct answer: Active (energy-driven)
While some passive movement occurs, the majority of mineral uptake is active because the concentration of minerals in soil is lower than in the root cells and ions cannot cross membranes without energy.
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More Mineral Transport in Plants questions
- Specific proteins in the membranes of ______ cells actively pump ions from the soil into the cytoplasm of epidermal cells.
- Remobilization of minerals occurs primarily during:
- Which of the following statements about root pressure is FALSE?
- Mineral ions reach the xylem through which of the following pathways?
- Unlike water, most minerals cannot be absorbed by the roots passively because:
- The active uptake of ions from the soil into the root cells is responsible for: