Multiple choice

A cell has O.P. = 24 atm, T.P. = 10 atm at a particular time. Water potential of that cell at that time will be

    • 10 bars

  2. 0 bar
    • 10 bars
    • 14 bars
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Water potential (ψ) is the sum of osmotic potential (ψs) and turgor pressure (ψp). Given OP = 24 atm (ψs = -24 atm) and TP = 10 atm (ψp = +10 atm), water potential = -24 + 10 = -14 atm. Since 1 atm ≈ 1.013 bar, -14 atm ≈ -14.2 bars, making -14 bars the closest answer.

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