In EMP, hexose sugar splits into two molecules of triose sugar by the catalytic activity of

Options

A. Phosphofructokinase
B. Aldolase
C. Dehydrogenase
D. Transphosphorylase

Answer

### Step-by-Step Text Solution:

1. **Understanding the Question**: The question asks about the enzyme responsible for the splitting of hexose sugar into two molecules of triose sugar during the Embden-Meyerhof-Parnas (EMP) pathway, also known as glycolysis.

2. **Identifying the Process**: Glycolysis is a series of biochemical reactions that occur in the cytoplasm of cells. It involves the breakdown of glucose (a hexose sugar) into pyruvate (a triose sugar).

3. **Key Reaction in Glycolysis**: In glycolysis, the specific reaction of interest is the conversion of fructose 1,6-bisphosphate (a hexose sugar) into two triose sugars. This reaction is crucial as it marks the splitting of the 6-carbon compound into two 3-carbon compounds.

4. **Enzyme Involved**: The enzyme responsible for this splitting reaction is **aldolase**. Aldolase catalyzes the cleavage of fructose 1,6-bisphosphate into two triose sugars: dihydroxyacetone phosphate (DHAP) and glyceraldehyde 3-phosphate (G3P).

5. **Conclusion**: Therefore, the correct answer to the question is **aldolase**.