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Glucose and 75% water is absorbed in...

Glucose and 75% water is absorbed in

A

(1) proximal convoluted tubule

B

(2) distal convoluted tubule

C

(3) collecting duct

D

(4) loop of henle

Text Solution

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The correct Answer is:
### Step-by-Step Solution: 1. **Understanding the Question**: The question asks where glucose and 75% of water are absorbed in the nephron of the kidney. 2. **Filtrate Formation**: The process begins in the kidneys, where blood is filtered in the glomerulus, leading to the formation of filtrate in the Bowman's capsule. 3. **Path of Filtrate**: After the formation of the filtrate, it passes through various parts of the nephron, including the proximal convoluted tubule (PCT), loop of Henle, distal convoluted tubule (DCT), and collecting duct. 4. **Role of Proximal Convoluted Tubule (PCT)**: The PCT is known to be the primary site for reabsorption in the nephron. It reabsorbs a significant amount of nutrients and water from the filtrate. 5. **Reabsorption of Glucose and Water**: In the PCT, approximately 75-80% of water is reabsorbed along with glucose and other essential nutrients. This makes the PCT crucial for maintaining the body's fluid and electrolyte balance. 6. **Conclusion**: Based on the information, the correct answer to the question is that glucose and 75% of water are absorbed in the **proximal convoluted tubule (PCT)**. ### Answer: The correct answer is **proximal convoluted tubule (PCT)**. ---
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