Which is mismatched?

Options

A. PCT - Reabsorption of `Na^(+)` and `K^(+)`
B. DCT - Reabsorption of glucose
C. Bowman's capsule - Glomerular filtration
D. Loop of Henle - Reabsorption of water

Answer

To solve the question "Which is mismatched?", we will analyze each option provided in the question regarding the functions of different parts of the nephron.

### Step-by-Step Solution:

1. **Understanding the Nephron Parts**:
- The nephron is the functional unit of the kidney, and it consists of several parts including the Proximal Convoluted Tubule (PCT), Distal Convoluted Tubule (DCT), Bowman's Capsule, and Loop of Henle.

2. **Analyzing Each Option**:
- **Option 1: PCT reabsorption of sodium ion and potassium ion**:
- The Proximal Convoluted Tubule (PCT) is indeed responsible for the reabsorption of sodium ions, potassium ions, and other substances. This statement is **correct**.

- **Option 2: DCT reabsorption of glucose**:
- The Distal Convoluted Tubule (DCT) does not reabsorb glucose. Glucose reabsorption primarily occurs in the PCT. Therefore, this statement is **incorrect** (mismatched).

- **Option 3: Bowman's capsule glomerular filtration**:
- Bowman's Capsule is involved in the process of glomerular filtration, where blood is filtered to form urine. This statement is **correct**.

- **Option 4: Loop of Henle reabsorption of water**:
- The Loop of Henle, specifically the descending limb, is permeable to water and is involved in water reabsorption. This statement is **correct**.

3. **Conclusion**:
- The only mismatched option is **Option 2: DCT reabsorption of glucose**, as glucose is reabsorbed in the PCT, not the DCT.

### Final Answer:
The mismatched option is **Option 2: DCT reabsorption of glucose**.

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