Why do eosinophils turn orange-red m response to eosin, an acidic dye?

Explanation

### Step-by-Step Solution:

1. **Understanding Eosinophils**: Eosinophils are a type of white blood cell that play a crucial role in the immune response, particularly in combating parasitic infections and in allergic reactions.

2. **Composition of Eosinophils**: The cytoplasm of eosinophils contains granules that are rich in basic proteins. These proteins have a positive charge.

3. **Nature of Eosin**: Eosin is an acidic dye, which means it has a negative charge. When eosin is introduced to a sample containing eosinophils, the acidic properties of eosin interact with the basic proteins present in the eosinophil granules.

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