Fructose is transpoed by
**Core Concept**
Fructose is a simple sugar that is absorbed and transported by the body through a specific mechanism. It is one of the primary sugars found in fruits, honey, and some vegetables. The transportation of fructose involves specific transporters in the intestinal epithelium and liver cells.
**Why the Correct Answer is Right**
Fructose is primarily transported into the intestinal epithelial cells by **facilitated diffusion** via the **glucose transporter 5 (GLUT5)**. This transporter is specific for fructose and allows for its rapid uptake into the cells. Once inside the cells, fructose is then transported into the bloodstream via **passive diffusion** and binds to **albumin**. In the liver, fructose is then converted into intermediates that can be used for energy production or stored as glycogen.
**Why Each Wrong Option is Incorrect**
* **Option A:** This option is not relevant to the transportation of fructose.
* **Option B:** While glucose is transported into the intestinal epithelial cells via **sodium-glucose cotransporter 1 (SGLT1)**, this is not the primary mechanism for fructose transport.
* **Option C:** This option is not a known transporter for fructose.
* **Option D:** This option is not relevant to the transportation of fructose.
**Clinical Pearl / High-Yield Fact**
It is essential to note that individuals with **fructose malabsorption** or **hereditary fructose intolerance** have impaired fructose transport mechanisms, leading to symptoms such as abdominal pain, diarrhea, and vomiting after consuming fructose-containing foods.
**Correct Answer:** C.