Multiple choice

Water potential is equal to

  1. y

  2. p + WP

  3. p + TP

  4. ys + yp
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Water potential (Ψ) is the sum of its components. In plant physiology, Ψ = Ψs + Ψp, where Ψs (or yw) is solute potential (osmotic potential) and Ψp (or yp) is pressure potential (turgor pressure). Option D shows this relationship correctly (ys + yp, using subscripts for solute and pressure). Options A, B, and C are incorrect representations of the water potential equation.

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