Why is an antibody molecule represented as `H_(2)L_(2)` ?

Explanation

To understand why an antibody molecule is represented as H₂L₂, we need to break down the structure of antibodies and the components involved.

### Step-by-Step Solution:

1. **Understanding Antibody Structure**:
Antibodies are proteins that play a crucial role in the immune response. They are composed of polypeptide chains, which are made up of amino acids.

**Hint**: Remember that antibodies are proteins and consist of chains of amino acids.
...