The pentacyclic sterol like molecules which stabilize the bacterial cell membrane are called as

Options

A. Cholesterol
B. Hopanoids
C. Spectrin
D. Glycophonns

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks for the name of pentacyclic sterol-like molecules that stabilize the bacterial cell membrane.

2. **Identifying the Context**: In biological terms, sterols are a type of lipid found in the membranes of cells. In eukaryotic cells, cholesterol is the primary sterol that helps maintain membrane fluidity and stability.

3. **Differentiating Between Eukaryotes and Prokaryotes**: While eukaryotic cells contain cholesterol, prokaryotic cells (like bacteria) do not have cholesterol. Instead, they have other molecules that serve a similar function.

4. **Recognizing the Molecules in Prokaryotes**: In prokaryotes, the sterol-like molecules that stabilize the cell membrane are called hopanoids. These molecules are structurally similar to sterols and help maintain the fluidity and integrity of the bacterial cell membrane.

5. **Concluding the Answer**: Therefore, the pentacyclic sterol-like molecules that stabilize the bacterial cell membrane are known as **Hopanoids**.

**Final Answer**: Hopanoids

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