Lipid derviative which occur in faecal material

Options

A. cholesterol
B. ergesterol
C. lanonline
D. coprosterol

Answer

**Step-by-Step Solution:**

1. **Understanding Lipid Derivatives**: Lipid derivatives are compounds that are derived from lipids, which are organic molecules that include fats, oils, waxes, and steroids.

2. **Identifying Common Lipid Derivatives**: In various organisms, lipid derivatives such as sterols are produced. Cholesterol is a well-known sterol that is a significant component of cell membranes in animals.

3. **Cholesterol Metabolism**: Cholesterol undergoes metabolism in the body, leading to the formation of bile acids and steroid hormones.

4. **Formation of Coprosterol**: When cholesterol is acted upon by microorganisms in the intestines, it is converted into coprosterol. This compound is insoluble in water and is a derivative of cholesterol.

5. **Excretion of Coprosterol**: Coprosterol is excreted in feces, making it a notable lipid derivative found in fecal material. It is also used as an indicator of fecal pollution due to its persistence in the environment.

6. **Conclusion**: The lipid derivative that occurs in fecal material is coprosterol, which is formed from the metabolism of cholesterol.

**Final Answer**: The lipid derivative that occurs in fecal material is coprosterol.

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