Which is mismatched `:`

Options

A. Bowman's capsule-Glomerular fiIteration
B. PCT- Absorption of `Na^(+) and K^(+)`
C. DCT- Absorption of glucose
D. None of these

Answer

To determine which option is mismatched regarding kidney function and urine formation, let's analyze the processes involved in urine formation and the roles of different parts of the nephron.

### Step-by-Step Solution:

1. **Understanding Urine Formation**:
Urine formation occurs through three main processes: ultrafiltration (glomerular filtration), reabsorption, and secretion.

2. **Identifying the Role of Bowman's Capsule**:
The Bowman's capsule is responsible for ultrafiltration, where blood is filtered to form a filtrate. This step is correctly matched.

3. **Analyzing the Proximal Convoluted Tubule (PCT)**:
The PCT is primarily involved in the reabsorption of essential nutrients, including glucose and amino acids, as well as 70-80% of water and electrolytes. This role is also correctly matched.

4. **Examining the Distal Convoluted Tubule (DCT)**:
The DCT is involved in the conditional reabsorption of sodium (Na+) and water, as well as the reabsorption of bicarbonate (HCO3). It also secretes hydrogen (H+) and potassium (K+) ions. However, it is not involved in the reabsorption of glucose.

5. **Identifying the Mismatched Option**:
Since the DCT does not reabsorb glucose, any statement claiming that the DCT is responsible for glucose absorption is incorrect. Therefore, the option stating "DCT absorption of glucose" is the mismatched statement.

### Conclusion:
The mismatched option is: **DCT absorption of glucose**.

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