All the macromolecules are the result of the process of polymerization, a process in which repeating subunits termed monomers are bound into chains of different lengths except

Options

A. (a) Nucleic acids
B. (b) Carbohydrates
C. (c) Lipids
D. (d) Proteins

Answer

To solve the question regarding which macromolecule is not a result of polymerization, we will analyze each option provided.

### Step-by-Step Solution:

1. **Understanding Polymerization**:
- Polymerization is a process where monomers (repeating subunits) are chemically bonded to form larger molecules called polymers.

2. **Analyzing Option A: Nucleic Acids**:
- Nucleic acids (like DNA and RNA) are composed of repeating units called nucleotides.
- Since nucleic acids are formed by the polymerization of nucleotides, they are polymers.
- **Conclusion**: Nucleic acids are not the answer.

3. **Analyzing Option B: Carbohydrates**:
- Carbohydrates consist of repeating units of monosaccharides (like glucose).
- When these monosaccharides are linked together, they form polysaccharides (like starch and glycogen).
- Thus, carbohydrates are also polymers.
- **Conclusion**: Carbohydrates are not the answer.

4. **Analyzing Option C: Lipids**:
- Lipids are generally made up of different components, primarily fatty acids and glycerol.
- Unlike nucleic acids and carbohydrates, lipids do not consist of repeating subunits of the same kind.
- Therefore, lipids do not fit the definition of a polymer.
- **Conclusion**: Lipids are the answer.

5. **Analyzing Option D: Proteins**:
- Proteins are made up of amino acids, which are linked together by peptide bonds.
- Since proteins are formed by the polymerization of amino acids, they are classified as polymers.
- **Conclusion**: Proteins are not the answer.

### Final Answer:
The macromolecule that is not a polymer is **C: Lipids**.

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