If the fatty acid contains one or more double bonds between C-C atoms then it is_____

Answer

To answer the question, "If the fatty acid contains one or more double bonds between C-C atoms then it is _____," we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Fatty Acids**: Fatty acids are a type of lipid that consists of a long hydrocarbon chain with a carboxyl group (-COOH) at one end.

2. **Identifying Types of Fatty Acids**: Fatty acids can be classified into two main types: saturated and unsaturated fatty acids.

3. **Defining Saturated Fatty Acids**: Saturated fatty acids have no double bonds between the carbon atoms in their hydrocarbon chain. All carbon atoms are fully saturated with hydrogen atoms.

4. **Defining Unsaturated Fatty Acids**: Unsaturated fatty acids contain one or more double bonds between carbon atoms in their hydrocarbon chain. This means that not all carbon atoms are fully saturated with hydrogen.

5. **Applying the Information**: The question specifically states that the fatty acid contains one or more double bonds between C-C atoms. This indicates that the fatty acid cannot be saturated.

6. **Conclusion**: Therefore, if a fatty acid contains one or more double bonds between C-C atoms, it is classified as an **unsaturated fatty acid**.

### Final Answer:
If the fatty acid contains one or more double bonds between C-C atoms then it is **unsaturated**.