Which of the following is not metabolized in the body ?

Options

A. Sucrose
B. D-glucose
C. L-Glucose
D. Aspartame

Answer

To determine which of the following substances is not metabolized in the body, we can analyze the options provided. Based on the information given in the video transcript, we can conclude the following:

1. **Identify the options**: The question likely presents several substances, including sucrose, D-glucose, aspartame, and L-glucose.

2. **Analyze each option**:
- **Sucrose**: This is a disaccharide composed of glucose and fructose. It is metabolized in the body.
- **D-glucose**: This is a monosaccharide that is readily metabolized by living organisms.
- **Aspartame**: This is an artificial sweetener that does not add calories and is also metabolized by the body.
- **L-glucose**: This is a stereoisomer of D-glucose that is not metabolized by the body due to the inability of the hexokinase enzyme to process it.

3. **Conclusion**: Among the options, L-glucose is the substance that is not metabolized in the body.

Thus, the correct answer to the question is **L-glucose**.