The complete reabsorption of glucose takes place in `:`

Options

A. Collecting tubule
B. Distal tubule
C. Proximal convoluted tubule
D. Henle loop

Answer

To answer the question about where the complete reabsorption of glucose takes place in the nephron, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding the Nephron Structure**:
- The nephron is the functional unit of the kidney, consisting of several parts: the glomerulus, Bowman's capsule, proximal convoluted tubule (PCT), loop of Henle, distal convoluted tubule (DCT), and collecting duct.

2. **Identifying the Role of Each Part**:
- Each part of the nephron has a specific function. The PCT is primarily involved in the reabsorption of essential nutrients and substances, including glucose, amino acids, and ions.

3. **Focusing on Glucose Reabsorption**:
- Glucose is filtered out of the blood in the glomerulus and enters the nephron. The PCT is where the majority of glucose reabsorption occurs. The epithelial cells lining the PCT have specialized transporters that actively transport glucose back into the bloodstream.

4. **Eliminating Other Options**:
- The collecting tubule and distal tubule are involved in the reabsorption of water and ions but not glucose. The loop of Henle primarily concentrates urine and does not reabsorb glucose.

5. **Conclusion**:
- Therefore, the complete reabsorption of glucose takes place in the **proximal convoluted tubule (PCT)**.

### Final Answer:
The complete reabsorption of glucose takes place in the **proximal convoluted tubule (PCT)**.

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