sucrose is composed of

Options

A. Glucose and fructose
B. Glucose and glycogen
C. Two molecules fo glucose
D. Glycogen and fractose

Answer

To determine what sucrose is composed of, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Sucrose**: Sucrose is classified as a disaccharide. Disaccharides are carbohydrates formed by the combination of two monosaccharides.

2. **Identifying Monosaccharides**: The two main types of monosaccharides that can combine to form disaccharides are glucose and fructose.

3. **Analyzing the Options**:
- **Option 1**: Glucose and fructose - This is a valid combination to form sucrose.
- **Option 2**: Glucose and glycogen - Glycogen is a polysaccharide, not a monosaccharide, so this option is incorrect.
- **Option 3**: Two molecules of glucose - This would form maltose, not sucrose, so this option is incorrect.
- **Option 4**: Glycogen and fructose - Glycogen is a polysaccharide, making this option incorrect as well.

4. **Conclusion**: After analyzing all the options, the correct answer is that sucrose is composed of glucose and fructose.

### Final Answer:
Sucrose is composed of glucose and fructose.

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