Choose the incorrect statement -

Options

A. Active enzyme has tertiary structure having many active sites (substrate binding sites)
B. Enzyme are different from catalyst in being proteinaceous
C. Enzymes occur in viruses
D. Enzymes are biocatalyst

Answer

To determine the incorrect statement from the provided options, let's analyze each statement step by step:

1. **Statement 1: Active site has tertiary structure having many active sites.**
- **Analysis:** The active site of an enzyme is indeed part of its tertiary structure, which is the three-dimensional shape of the protein. However, each enzyme typically has a specific active site where the substrate binds. While some enzymes may have multiple active sites, it is not common for them to have "many" active sites. Therefore, this statement is misleading and can be considered incorrect.

2. **Statement 2: Enzymes are different from catalysts in being proteinitious.**
- **Analysis:** This statement is accurate. Enzymes are biological catalysts that are made of proteins, whereas catalysts can be inorganic substances (like metals) that speed up chemical reactions. Thus, this statement is true.

3. **Statement 3: Enzymes occur in viruses.**
- **Analysis:** This statement is also true. Some viruses contain enzymes, such as reverse transcriptase, which is crucial for their replication. Therefore, this statement is correct.

4. **Statement 4: Enzymes are biocatalysts.**
- **Analysis:** This statement is true as well. Enzymes are indeed biocatalysts, meaning they are substances that increase the rate of biochemical reactions in living organisms.

**Conclusion:** The incorrect statement is **Statement 1**: "Active site has tertiary structure having many active sites."

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