The cell `A` has an osmotic potential of `-20` bars and a pressure potential of `+6` bars. What will be its water potential?

Options

A. `-14bars`
B. `+14bars`
C. `-20bars`
D. `-26bar`

Answer

A

Explanation

`Psi_(w)=Psi_(s)+Psi_(rho)`
Where `Psi_(w)=`water potential ,`Psi_(s)=` osmotic potential
and `Psi_(rho)=` pressure potential
`Psi_(w)=(-20)+(+6)=-14` "bars"`