Practice question
Question
If cell A has Ψ = -0.345 MPa and cell B has Ψ = -0.234 MPa, water moves:
Explanation
That points to B: B to A. Compared with the other options, B to A is the one that correctly describes the WATER POTENTIAL concept. The wrong ones are A) A to B; C) Both ways; D) No movement. If you’re stuck, eliminate anything that contradicts a basic fact you already know for this topic.