Transpo of glucose through apical membrane of enterocytes is ?
**Core Concept**
The transport of glucose through the apical membrane of enterocytes involves **facilitated diffusion** and **active transport** mechanisms. This process is crucial for glucose absorption in the small intestine. The **sodium-glucose cotransporter 1 (SGLT1)** plays a key role in this process.
**Why the Correct Answer is Right**
The correct answer is related to the function of **SGLT1**, which uses the **sodium gradient** to transport glucose against its concentration gradient into the enterocyte. This process is essential for the absorption of glucose from the intestinal lumen.
**Why Each Wrong Option is Incorrect**
**Option A:** Incorrect because it does not accurately describe the primary mechanism of glucose transport through the apical membrane of enterocytes.
**Option B:** Incorrect as it is not the primary mechanism for glucose transport in this context.
**Option C:** Incorrect because it is not directly related to the transport of glucose through the apical membrane.
**Clinical Pearl / High-Yield Fact**
The **sodium-glucose cotransporter 1 (SGLT1)** is a key protein in the absorption of glucose in the small intestine. Inhibitors of SGLT1 can be used to treat diabetes mellitus type 2.
**Correct Answer:** D. Sodium-glucose cotransporter