SC-304
Cell structures and functions
Lower Sec Science · Secondary 1 · Hard · Cell structures and functions
The table shows the concentration of ions in the cell sap of a freshwater plant and in the surrounding pond water.
Concentration / mg L⁻¹
Sodium Chloride Potassium
Cell sap 0.05 0.40 0.60
Pond water 0.20 0.42 0.02
What do these data suggest about how the plant handles potassium ions?
Concentration / mg L⁻¹
Sodium Chloride Potassium
Cell sap 0.05 0.40 0.60
Pond water 0.20 0.42 0.02
What do these data suggest about how the plant handles potassium ions?
- It accumulates potassium ions by active transport.
- It loses potassium ions by diffusion.
- It accumulates potassium ions by diffusion.
- It neither gains nor loses potassium ions.
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