Give one example of a zwitterion.

Explanation

### Step-by-Step Text Solution:

1. **Definition of Zwitterion**:
A zwitterion is a molecule that contains both positive and negative charges but is overall electrically neutral. This occurs when there are functional groups within the molecule that can donate and accept protons (H⁺ ions), leading to the presence of both cationic (positively charged) and anionic (negatively charged) forms.

2. **Characteristics of Zwitterions**:
- They have an equal number of positive and negative charges.
- They are typically found in amino acids and certain other organic compounds.
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