Two cells, A and B beside each other in the root cortex. ψs and ψp values of cell A are - 0.8 MPa and 0.6 MPa. ψs and ψp of cell B are -0.7MPa and 0.4 MPa. Water moves from ______.
Options:
A . A to B
B . B to A
C . Dynamic Equilibrium between A and B
D . No movement
Answer: Option A : A ψw of cell A = -0.8+0.6 = - 0.2 MPa ψ of cell B = -0.7+0.4= - 0.3 MPa. Water moves from higher ψw value to lower Ψw value. Hence it moves from A to B
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