Question

Select the correct statement from the following.

• A. In a fully turgid cell, TP = OP.
• B. In a fully turgid cell, TP > OP.
• C. In a fully turgid cell, DPD = OP.
• D. Turgor pressure decreases when the cell is placed in hypotonic solution.

Hint:

Use DPD = OP - TP. A fully turgid cell has zero DPD.

Answer 1

The Correct Option is A

Step 1: Understanding the Concept
Diffusion pressure deficit is given by \(\text{DPD}=\text{OP}-\text{TP}\).

Step 2: Fully turgid cell
A fully turgid cell cannot take in more water, so its DPD is zero. Then \(\text{OP}-\text{TP}=0\), so \(\text{TP}=\text{OP}\).

Step 3: Check the options
TP is not greater than OP, so (B) fails. DPD is zero, not equal to OP, so (C) fails. In a hypotonic solution water enters and turgor pressure increases, so (D) fails.

Final Answer:
In a fully turgid cell, TP equals OP. \[ \boxed{\text{(A) }\text{In a fully turgid cell, TP = OP.}} \]