Question

The solute potential of a plant cell is -17 bar, and its pressure potential is 5 bar. Determine the water potential.

• A. 12
• B. -22
• C. -12
• D. 22

Answer 1

The correct option is C -12

Here,
solute potential (𝜓s) = -17 bar
pressure potential (𝜓p) = 5 bar

Now, water potential is given by:
𝜓 = 𝜓p + 𝜓s
= 5+ (-17)
= - 12 bar