Enzyme aldolase which helps in spliiting 1,6 fructose biphosphate into dihydroxy acetone phosphate and glyceraldehyde phosphate belongs to the category of

Options

A. Ligases
B. Hydrolases
C. Transferases
D. lyases.

Answer

To determine the category of the enzyme aldolase, which splits 1,6-fructose biphosphate into dihydroxyacetone phosphate (DHAP) and glyceraldehyde 3-phosphate (G3P), we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Reaction**: The enzyme aldolase catalyzes the cleavage of 1,6-fructose biphosphate into two three-carbon molecules: dihydroxyacetone phosphate and glyceraldehyde 3-phosphate.

2. **Understand Enzyme Classification**: Enzymes are classified into six main categories by the International Union of Biochemistry (IUB). These categories are:
- Oxidoreductases
- Transferases
- Hydrolases
- Lyases
- Isomerases
- Ligases

3. **Analyze the Function of Aldolase**: Aldolase facilitates a splitting reaction (cleavage) without the addition of water or hydrogen. This is a key characteristic of lyases, which are enzymes that catalyze the addition or removal of groups to double bonds or the cleavage of bonds without hydrolysis.

4. **Differentiate Between Enzyme Types**:
- **Lyases**: Catalyze the breaking of bonds by means other than hydrolysis or oxidation.
- **Ligases**: Join two molecules together.
- **Hydrolases**: Break down molecules using water.
- **Transferases**: Transfer functional groups from one molecule to another.

5. **Conclude the Classification**: Since aldolase catalyzes the cleavage of fructose 1,6-bisphosphate into two smaller molecules without the use of water, it fits the definition of a lyase.

### Final Answer:
The enzyme aldolase belongs to the category of **lyases**.

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