Anino acids may be acidic, alkaline or neutral, How does this happen? What are essential and non-essential amino acids? Name one of each type.

Explanation

### Step-by-Step Solution:

1. **Understanding Amino Acids**:
- Amino acids are organic compounds that serve as the building blocks of proteins. They contain both an amino group (-NH2) and a carboxyl group (-COOH).

2. **Classification of Amino Acids**:
- Amino acids can be classified as acidic, alkaline (basic), or neutral based on the relative amounts of amino and carboxyl groups present in their structure.

...