The immune regulator molecule prostaglandin is derived from

Options

A. Oligosaccharides
B. fatty acids
C. Steroids
D. amino acids

Answer

To solve the question regarding the immune regulator molecule prostaglandin and its source, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Prostaglandins**:
- Prostaglandins are known as physiological active molecules that play various roles in the body, including regulation of inflammation and vasodilation.

2. **Identifying the Class of Molecules**:
- Prostaglandins belong to a class of compounds known as eicosanoids, which are bioactive lipids.

3. **Source of Prostaglandins**:
- Eicosanoids, including prostaglandins, are derived from polyunsaturated fatty acids. The most common fatty acid from which prostaglandins are synthesized is arachidonic acid.

4. **Analyzing the Options**:
- The options provided are:
- A) Oligosaccharides
- B) Fatty acids
- C) Steroids
- D) Amino acids
- Oligosaccharides are carbohydrates, steroids are a different class of lipids, and amino acids are the building blocks of proteins. Therefore, the only correct option that aligns with the source of prostaglandins is fatty acids.

5. **Conclusion**:
- Based on the analysis, prostaglandins are derived from fatty acids, specifically polyunsaturated fatty acids like arachidonic acid.

### Final Answer:
- The immune regulator molecule prostaglandin is derived from **fatty acids** (Option B).