which is a disaccharide ?

Options

A. Galactose
B. Fructose
C. Maltose
D. Dextrin

Answer

To determine which is a disaccharide from the given options, let's analyze each option step by step.

### Step 1: Understand what a disaccharide is
A disaccharide is a type of carbohydrate that is formed when two monosaccharides (simple sugars) join together through a glycosidic bond. Common examples of disaccharides include sucrose, lactose, and maltose.

### Step 2: Analyze the options
1. **Galactose**: This is a monosaccharide, not a disaccharide.
2. **Fructose**: This is also a monosaccharide, not a disaccharide.
3. **Maltose**: This is a disaccharide formed from two glucose molecules.
4. **Dextrin**: This is a group of low molecular weight carbohydrates produced from the hydrolysis of starch or glycogen, not a disaccharide.

### Step 3: Identify the correct answer
From the analysis, the only option that qualifies as a disaccharide is **maltose**.

### Final Answer
The disaccharide among the options provided is **maltose**.

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