Select the incorrect statement.
1. | Transport of molecules in phloem can be bidirectional. |
2. | The movement of minerals in the xylem is unidirectional. |
3. | Unloading of sucrose at the sink does not involve the utilization of ATP. |
4. | Elements most easily mobilized in plants from one region to another are phosphorus, sulfur, nitrogen, and potassium. |
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