Question

Choose the correct answers from the alternatives given :
The relationship between osmotic pressure, turgor pressure and wall pressure is represented by

• A. TP=OP+WP
• B. OP=TPWP
• C. WP = TP OP
• D. OP = TP + WP

Answer 1

The correct option is B OP=TPWP

Wall pressure is equal and opposite to the turgor pressure.

TP = WP

Also, DPD/SP = OP- WP

WP = TP

DPD = OP - TP

In fully turgid cells, turbo pressure is equal to osmotic pressure. Hence, division pressure deficit is zero in such case

OP = TP (in turgid cell)

DPD = 0 (zero)

In fully plasmyzed cells, the value of turgor pressure becomes zero due to decrease in TP and increase of OP.

TP = 0

SP/DPD = OP (in plasmolyzed cells)

Now a days water potential is used which is equal to DPD.

WP = DPD

So, the correct option is 'Op= TP WP'.