An enzyme sucrase is an example of:

Options

A. oxidoreductase
B. transferase
C. hydrolase
D. lyase

Answer

To determine what type of enzyme sucrase is, we will analyze the options provided step by step.

### Step 1: Understand the Function of Sucrase
Sucrase is an enzyme that catalyzes the hydrolysis of sucrose into glucose and fructose. This means it helps break down the disaccharide sucrose into its monosaccharide components.

**Hint:** Look for the specific reaction that the enzyme catalyzes to identify its classification.

### Step 2: Evaluate the Options
1. **Oxidoreductase**: This type of enzyme catalyzes oxidation-reduction reactions, involving the transfer of electrons. Since sucrase does not perform this function, this option is incorrect.

**Hint:** Remember that oxidoreductases are involved in electron transfer, not in breaking down sugars.

2. **Transferase**: Transferases are enzymes that transfer functional groups from one molecule to another. Sucrase does not transfer functional groups; it breaks down sucrose, so this option is also incorrect.

**Hint:** Think about whether the enzyme is moving groups between molecules or breaking them down.

3. **Hydrolase**: Hydrolases catalyze the breakdown of compounds by adding water (hydrolysis). Since sucrase breaks down sucrose into glucose and fructose by hydrolysis, this option is correct.

**Hint:** Identify if the enzyme is involved in hydrolysis, which is a key characteristic of hydrolases.

4. **Lyase**: Lyases are enzymes that catalyze the addition or removal of groups to form double bonds or the removal of elements of water. Since sucrase does not fit this description, this option is incorrect.

**Hint:** Consider whether the enzyme is forming or breaking bonds without the addition of water.

### Step 3: Conclusion
Based on the analysis, sucrase is classified as a **hydrolase** because it catalyzes the hydrolysis of sucrose into glucose and fructose.

**Final Answer:** Sucrase is an example of a hydrolase enzyme.