Question

DPD can be calculated by

• A. $OP+TP$
• B. $OP=WP$
• C. $OP-TP$
• D. $OP-DPD$

Answer 1

Answer: (C)

$OP-TP$

DPD stands for diffusion pressure deficit. Its value is calculated by the formula OP - TP, where OP stands for osmotic pressure and TP stands for turgor pressure. Water always flows from an area of lesser DPD towards an area having higher DPD. The TP is equal and opposite in direction to Wall Pressure or WP, as per Newton's law.