A pair of enzymes which catalyse the transfer of groups

Options

A. Oxidoreductases & transferases
B. Oxidoreductases and ligases
C. Transferases and lyases
D. Lyases and ligases

Answer

To solve the question about the pair of enzymes that catalyze the transfer of groups, we will analyze the options provided and the functions of the enzymes mentioned.

### Step-by-Step Solution:

1. **Understanding the Question**: The question asks for a pair of enzymes that catalyze the transfer of groups. This means we are looking for enzymes that facilitate the movement of functional groups from one molecule to another.

2. **Identifying the Enzymes**: The options given are:
- Option 1: Oxyriraclases and Transferases
- Option 2: Oxyriraclases and Ligases
- Option 3: Transferases and Lyases
- Option 4: Lyases and Ligases

3. **Analyzing Transferases**: Transferases are well-known enzymes that specifically catalyze the transfer of functional groups (like methyl, phosphate, etc.) from one molecule to another. This means they are definitely involved in the transfer of groups.

4. **Eliminating Options**: Since we know that Transferases are involved in the transfer of groups, we can eliminate options that do not include Transferases:
- Option 2 (Oxyriraclases and Ligases) does not include Transferases.
- Option 4 (Lyases and Ligases) does not include Transferases.

This leaves us with:
- Option 1: Oxyriraclases and Transferases
- Option 3: Transferases and Lyases

5. **Analyzing Oxyriraclases**: Oxyriraclases (more commonly known as oxidoreductases) are enzymes that facilitate oxidation-reduction reactions. They can involve the transfer of electrons and may also involve the transfer of groups, but their primary function is not just the transfer of groups.

6. **Analyzing Lyases**: Lyases are enzymes that cleave bonds without hydrolysis or oxidation. Their primary function is to break bonds, not to transfer groups. Therefore, they do not fit the requirement of transferring groups.

7. **Final Decision**: Since Transferases are confirmed to transfer groups and Oxyriraclases can also be involved in the transfer of groups (though indirectly through redox reactions), the best pair that fits the question is:
- **Correct Answer**: Option 1: Oxyriraclases and Transferases.

### Final Answer:
The correct pair of enzymes that catalyze the transfer of groups is **Oxyriraclases and Transferases**.

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