What is diffusion pressure deficit (DPD) ?

Explanation

**Step-by-Step Text Solution for the Question: What is diffusion pressure deficit (DPD)?**

1. **Definition of DPD**: Diffusion Pressure Deficit (DPD) is defined as the reduction in the diffusion pressure of water in a solution or a living cell.

2. **Causes of DPD**: The reduction in diffusion pressure can occur due to:
- The addition of solute to the solution, which decreases the potential for water to diffuse.
- The presence of forces that oppose the diffusion of water.

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