Water potentials were determined in a leaf cell, within the leaf’s air spaces, and in the surrounding atmosphere. Which water potential ($\Psi$) values would make it possible for water to move from the leaf into the atmosphere?
- A$\Psi$ inside leaf cell $= -1\,\text{MPa}$; $\Psi$ of air spaces $= -7\,\text{MPa}$; $\Psi$ of atmosphere $= -100\,\text{MPa}$
- B$\Psi$ inside leaf cell $= -100\,\text{MPa}$; $\Psi$ of air spaces $= -7\,\text{MPa}$; $\Psi$ of atmosphere $= -1\,\text{MPa}$
- C$\Psi$ inside leaf cell $= 1\,\text{MPa}$; $\Psi$ of air spaces $= 7\,\text{MPa}$; $\Psi$ of atmosphere $= 100\,\text{MPa}$
- D$\Psi$ inside leaf cell $= 100\,\text{MPa}$; $\Psi$ of air spaces $= 7\,\text{MPa}$; $\Psi$ of atmosphere $= 1\,\text{MPa}$