the conversion of maltose to glucose is possible by the enzyme :

Options

A. zymase
B. lactase
C. maltose
D. diastase.

Explanation

To solve the question regarding the conversion of maltose to glucose, we need to identify the specific enzyme responsible for this biochemical reaction. Here’s a step-by-step breakdown of the solution:

### Step 1: Understand the Structure of Maltose
Maltose is a disaccharide composed of two glucose molecules linked together.

**Hint:** Remember that disaccharides are made up of two monosaccharide units.

### Step 2: Identify the Enzyme Responsible for the Conversion
The enzyme that catalyzes the hydrolysis of maltose into its constituent monosaccharides (glucose) is called maltase.

**Hint:** Look for enzymes that specifically act on disaccharides to break them down into monosaccharides.

### Step 3: Confirm the Function of Maltase
Maltase acts on maltose, breaking the glycosidic bond between the two glucose units, resulting in the formation of two glucose molecules.

**Hint:** Enzymes are specific to their substrates; knowing the substrate helps in identifying the correct enzyme.

### Step 4: Eliminate Other Options
- **Zymase** is involved in the fermentation process but does not convert maltose to glucose.
- **Lactase** is responsible for breaking down lactose into glucose and galactose, not maltose.

**Hint:** When faced with multiple choices, eliminate options that do not match the substrate or the reaction required.

### Conclusion
The enzyme that converts maltose to glucose is **maltase**.

**Final Answer:** The conversion of maltose to glucose is possible by the enzyme **maltase**.