- (A) True: In a flaccid cell, turgor pressure (T.P.) is zero due to no water pressure against the cell wall.
- (B) True: In a turgid cell, diffusion pressure deficit (DPD) is zero as the cell is fully saturated.
- (C) True: In a fully turgid cell, turgor pressure (TP) equals osmotic pressure (OP).
- (D) False: Water potential of pure water is zero (maximum), not negative.
Answer: Water potential of pure water is negative.