Question

If you ignore the factors which are negligible and universal, which are the main components that determine water potential?

• A. Pressure potential
• B. Gravity potential
• C. Matrix potential
• D. Solute potential

Answer 1

Answer: (A), (D)

Solute potential

Water potential is the sum of both solute potential and pressure potential. This can be represented as ${\psi }_w={\psi }_s+{\psi }_p$.
Matrix potential is negligible and gravity potential is the same everywhere, so they are not the main components determining water potential.