Cell A and cell B are adjacent plant cells. In cell A `Psi_(s)=-20` bars and `Psi_(p) =8` bars. In cell B, `Psi_(s)=-12` bars and `Psi_(p)=2` bars . Then,

Options

A. water moves from cell B to cell A
B. equal amount of water is simultaneously exchanged between cell A and cell B
C. water moves from cell A to cell B
D. there is no movement of water between cell A and cell B

Answer

C

Explanation

Movement of water between cell takes place along the water potential gradient, water moves from a cell having higher water potential to a cell having lower water potential. Cell B has lower water potentail (-12 bars -2 bars =-14 bars), whereas cell A has higher water potential (-20 bars +8 bars = -12 bars). Hence, water will move from cell A to cell B.