Question

What is the approximate pore size of the microfiltration membrane for separation of bacterial cells from milk?

• A. 0.2 μm
• B. 0.7 μm
• C. 2.0 μm
• D. 1.5 μm

Hint:

Microfiltration: 0.2 μm pore size.
Removes bacteria from milk.
Non-thermal alternative.

Answer 1

The Correct Option is A

Step 1: Understanding the Concept:
Microfiltration is used to remove bacteria from milk.
The pore size determines the separation efficiency.
Step 2: Key Formula or Approach:
No specific formula.
Need to know the pore size for microfiltration.
Step 3: Detailed Explanation:
The approximate pore size for microfiltration is 0.2 μm.
This is sufficient to remove bacterial cells.
Other sizes are not appropriate for bacteria removal.
Thus, 0.2 μm is the correct pore size.
Step 4: Final Answer:
The pore size is 0.2 μm.
Hence, the correct option is (A). \bigskip