Question

In a fully turgid cell

• A. Ψp will be negative and Ψs will be positive
• B. Both Ψs and Ψp will be positive
• C. Ψs will be negative and Ψp will be positive
• D. BothΨs and Ψp will be negative

Answer 1

The correct option is C

Ψs will be negative and Ψp will be positive

A cell has many solutes in it and solute potential can either be negative or zero. Hence, even in a fully turgid cell, the solute potential (${\psi }_s$) is negative. Because it is fully turgid, is exerts pressure outwards, which is the pressure potential (${\psi }_p$), and it is positive.