The Hexokinase in the following reaction is kept under which class?
`"Glucose"+ATPoverset("Hexokinase")underset(Mg^(++))(to)"Glucose 6-Phosphate"+ADP`

Options

A. Lyase
B. Ligase
C. Isomerase
D. Transferase

Answer

To determine the class of the enzyme hexokinase in the given reaction, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Reaction**: The reaction provided is:
\[ \text{"Glucose"} + \text{ATP} \overset{\text{Hexokinase}}{\underset{\text{Mg}^{++}}{\rightarrow}} \text{"Glucose 6-Phosphate"} + \text{ADP} \]
This reaction involves the conversion of glucose into glucose 6-phosphate with the help of ATP and the enzyme hexokinase.

2. **Understand the Role of Hexokinase**: Hexokinase is an enzyme that catalyzes the phosphorylation of glucose. This means it adds a phosphate group to glucose, which is derived from ATP.

3. **Analyze the Type of Reaction**: The key aspect of this reaction is the transfer of a phosphate group from ATP to glucose. This indicates that the enzyme is facilitating a transfer process.

4. **Classify the Enzyme**: Enzymes are classified into different categories based on the type of reaction they catalyze. The transfer of a phosphate group from ATP to glucose falls under the category of:
- **Transferases**: These enzymes transfer functional groups from one molecule to another.

5. **Conclusion**: Therefore, hexokinase is classified under the class of transferases because it transfers a phosphate group to glucose.

### Final Answer:
Hexokinase is classified as a **transferase**.

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