Practice question

The right choice is C: Ψs and Ψp. In WATER POTENTIAL, that matches how the process or concept actually works — the other choices mix up related ideas or use the wrong mechanism. Skip these: A) Ψs and Ψg; B) Ψp and Ψg; D) Ψm and Ψg. A quick check: if an option needs energy, pumps, or the opposite direction of movement, ask whether that really applies.