Dihydroxyacetone-3 phosphate and glyceraldehyde-3-phosphate are interconvertible. The enzyme responsible for this interconversion belongs to the cateogry of

Options

A. isomerases
B. ligases
C. lyases
D. hydrolases.

Explanation

To determine the category of the enzyme responsible for the interconversion of dihydroxyacetone-3 phosphate and glyceraldehyde-3 phosphate, we can follow these steps:

### Step 1: Understand the Compounds
- Dihydroxyacetone-3 phosphate (DHAP) and glyceraldehyde-3 phosphate (G3P) are both intermediates in the glycolysis pathway.
- DHAP is a ketose (a sugar with a ketone group), while G3P is an aldose (a sugar with an aldehyde group).

**Hint:** Identify the functional groups in the compounds to classify them as ketoses or aldoses.

### Step 2: Identify the Reaction Type
- The interconversion of DHAP and G3P involves the transformation of a ketone into an aldehyde and vice versa.
- This type of reaction is a rearrangement of molecular structure without adding or removing any atoms.

**Hint:** Consider what type of enzyme would facilitate the rearrangement of molecular structures.

### Step 3: Classify the Enzyme
- Enzymes that catalyze the conversion of one isomer into another are classified as isomerases.
- Specifically, the enzyme that catalyzes the interconversion of DHAP and G3P is known as triose phosphate isomerase.

**Hint:** Recall the definition of isomerases and think about the specific enzyme that acts on triose phosphates.

### Step 4: Conclusion
- Therefore, the enzyme responsible for the interconversion of dihydroxyacetone-3 phosphate and glyceraldehyde-3 phosphate belongs to the category of **isomerases**.

**Final Answer:** The enzyme responsible for the interconversion belongs to the category of **isomerase**.