Question

The osmotic potential and pressure potential of three cells (A, B, C) located in different parts of an actively transpiring plant are as following.

$\begin{array}{ccc}\text{Cell}& \text{Osmotic potential (MPa)}& \text{Pressure potential(MPa)}\\ A.& -0.87& 0.44\\ B.& -0.92& 0.34\\ C.& -0.68& 0.27\end{array}$

Which of the cells (A, B, C) have the highest water potential.

• A. A
• B. B
• C. C
• D. All of these.

Answer 1

The correct option is C

C

This has the lowest osmotic potential.