Which one is correct ?

Options

A. Inorganic catalysts work efficiently at high temperature and high pressure while enzymes get damaged at hightemperature (above 40°C)
B. Thermophilic organisms living in hot vents and sulphur Springs have enzymes that are stable and retain theircatalytic power even at high temperature (80-90°C)
C. Ribozymes are nucleic acids behaving like enzyme
D. All

Answer

To determine which statement is correct regarding catalysts and enzymes, let's break down the information provided in the video transcript step by step.

### Step-by-Step Solution:

1. **Understanding Inorganic Catalysts**:
- Inorganic catalysts can function efficiently at high temperatures and pressures. They do not get denatured like enzymes do.
- **Hint**: Recall that inorganic catalysts are not made of proteins and thus are not affected by temperature in the same way as enzymes.

2. **Understanding Enzymes**:
- Enzymes are primarily proteins and can be damaged (denatured) at high temperatures. Denaturation alters their structure, rendering them inactive.
- **Hint**: Remember that enzymes have optimal temperature ranges, and exceeding these can lead to loss of function.

3. **Thermophilic Organisms**:
- Some organisms, known as thermophiles, thrive in extreme heat (e.g., hot vents and sulfur springs). Their enzymes are adapted to remain stable and functional at high temperatures (around 80-90 degrees Celsius).
- **Hint**: Think about how certain organisms have evolved to survive in extreme environments and how their enzymes are specialized.

4. **Nucleic Acids as Enzymes**:
- While most enzymes are proteins, some enzymes are made of nucleic acids, such as ribozymes. Ribozyme is an example of an enzyme that is not protein-based but still has catalytic activity.
- **Hint**: Consider the diversity of biological molecules and their functions, including the role of RNA in catalysis.

5. **Conclusion**:
- All the statements presented in the options are correct. Inorganic catalysts work well under extreme conditions, thermophilic organisms have specialized enzymes, and some enzymes are nucleic acids.

### Final Answer:
All the statements are correct.