During absorption of carbohydrates in the blood the most rapidly transported monosaccharide is

Options

A. glucose
B. galactose
C. fructose
D. sucrose.

Answer

**Step-by-Step Solution:**

1. **Understanding Monosaccharides**: Carbohydrates are broken down into their smallest units called monosaccharides during digestion. The main monosaccharides are glucose, galactose, and fructose.

2. **Identifying the Options**: The question provides four options: glucose, galactose, fructose, and sucrose. It is important to note that sucrose is a disaccharide and not a monosaccharide, so it can be eliminated as an option.

3. **Absorption in the Small Intestine**: All the monosaccharides (glucose, galactose, and fructose) are absorbed in the small intestine.

4. **Comparing Absorption Rates**:
- Fructose is absorbed at a slower rate compared to glucose and galactose.
- Glucose and galactose are absorbed at similar rates through co-transport proteins that work with sodium ions.

5. **Final Comparison**: While glucose and galactose are absorbed at similar rates, under certain conditions, galactose can be absorbed faster than glucose. However, glucose is generally recognized as the most rapidly transported monosaccharide in the bloodstream.

6. **Conclusion**: Therefore, the most rapidly transported monosaccharide during absorption in the blood is **glucose**.

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