Question

Identify the INCORRECT statement.

• A. In a flaccid cell, T.P. is zero
• B. In a turgid cell, DPD is zero
• C. In a fully turgid cell, TP = OP
• D. Water potential of pure water is negative

Hint:

The water potential of pure water is zero, not negative. It’s important to remember this when calculating water potential in cells.

Answer 1

The Correct Option is D

Step 1: Understanding water potential.
Water potential is the potential energy of water in a system. In pure water, the water potential is zero because it has no solute or pressure gradient.
Step 2: Analyzing the options.
(1) In a flaccid cell, T.P. is zero: Correct. Turgor pressure (T.P.) is zero in a flaccid cell.
(2) In a turgid cell, DPD is zero: Correct. In a turgid cell, the pressure potential (DPD) is zero.
(3) In a fully turgid cell, TP = OP: Correct. In a fully turgid cell, turgor pressure equals osmotic pressure.
(4) Water potential of pure water is negative: Incorrect. The water potential of pure water is zero, not negative.
Step 3: Conclusion.
The correct answer is (4) Water potential of pure water is negative, which is incorrect. The water potential of pure water is zero.