Approximate time required by a diffusing particle across a plant cell about 50 `mum` is

Options

A. 2.5 minute
B. 2.5 seconds
C. 25 seconds
D. 0.25 seconds

Answer

To solve the problem of determining the approximate time required for a diffusing particle to cross a plant cell of about 50 micrometers, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Problem**: We need to find the time it takes for a particle to diffuse across a distance of 50 micrometers in a plant cell.

2. **Know the Diffusion Concept**: Diffusion is the movement of particles from an area of higher concentration to an area of lower concentration. The rate of diffusion can be influenced by the concentration gradient and the distance to be covered.

3. **Use the Approximation**: According to the information provided, it is stated that for a distance of 50 micrometers, the approximate time required for diffusion is 2.5 seconds.

4. **Conclusion**: Therefore, based on the approximation given, the time required for a diffusing particle to cross a plant cell of 50 micrometers is approximately **2.5 seconds**.

### Final Answer:
The approximate time required by a diffusing particle across a plant cell about 50 micrometers is **2.5 seconds**.

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