Fructose can be absorbed into blood capillaries by

Options

A. sinple diffusion with `Na^(+)`
B. facilitated diffusion
C. active transport with `Ca^(+)`
D. simple diffiusioa with `K^(+)`

Answer

**Step-by-Step Solution:**

1. **Understanding Absorption**: The process of absorption involves the transfer of digested nutrients from the intestinal mucosa into the blood and lymphatic system. This can occur through various transport mechanisms.

2. **Types of Transport Mechanisms**:
- **Active Transport**: This process requires energy (ATP) and moves substances against their concentration gradient (from lower to higher concentration).
- **Passive Transport**: This process does not require energy and moves substances along their concentration gradient (from higher to lower concentration).
- **Facilitated Transport**: This is a type of passive transport that requires specific carrier proteins to help move substances across the cell membrane.

3. **Fructose Absorption**: Fructose is a type of sugar that is absorbed in the intestines. Unlike glucose, which may be absorbed through active transport, fructose absorption occurs through facilitated diffusion.

4. **Role of Carrier Proteins**: Fructose utilizes specific carrier proteins (often involving sodium ions) to facilitate its transport into the blood capillaries. This means that fructose is absorbed with the help of sodium ions, making it a facilitated diffusion process.

5. **Conclusion**: Based on the mechanisms of absorption and the specific transport method for fructose, the correct answer to the question is that fructose can be absorbed into blood capillaries by **facilitated diffusion**.

**Final Answer**: Fructose can be absorbed into blood capillaries by **facilitated diffusion**.

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