Which of the following is not a biopolymer ?

Options

A. Cellulose
B. Proteins
C. DNA
D. Nylon-6,6

Answer

To determine which of the following is not a biopolymer, we first need to understand what a biopolymer is. A biopolymer is a naturally occurring polymer that can be extracted from biological sources. Examples of biopolymers include cellulose, proteins, and nucleic acids (like DNA).

### Step-by-Step Solution:

1. **Identify the Definition of Biopolymer**:
- A biopolymer is a polymer that is naturally occurring and can be extracted from living organisms.

2. **List Common Biopolymers**:
- Examples of biopolymers include:
- **Cellulose**: Found in the cell walls of plants.
- **Proteins**: Found in various food sources such as pulses and soybeans.
- **Nucleic Acids (DNA/RNA)**: Found in all living organisms.

3. **Analyze the Given Options**:
- We need to evaluate the options provided in the question to identify which one is not a biopolymer.

4. **Identify Synthetic Polymers**:
- **Nylon 6-6**: This is a synthetic polymer made from the polymerization of hexamethylenediamine and adipic acid. It is not obtained from natural sources.

5. **Conclusion**:
- Since nylon 6-6 is synthesized and not derived from natural resources, it is not considered a biopolymer.

### Final Answer:
- The option that is not a biopolymer is **Nylon 6-6**.

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