Name two facts in support of zwitterion structure ofa-amino acids.

Explanation

To answer the question regarding the zwitterion structure of α-amino acids, we will outline two supporting facts step by step.

### Step-by-Step Solution:

1. **Understanding the Zwitterion Structure**:
- A zwitterion is a molecule that has both positive and negative charges but is overall electrically neutral. In the case of α-amino acids, the structure can be represented as:
- R-CH(NH3^+)COO^-
- Here, the amino group (-NH2) accepts a proton (H^+) to become -NH3^+, and the carboxyl group (-COOH) loses a proton to become -COO^-.
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