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The maximum amount of electrolytes and w...

The maximum amount of electrolytes and water (70-80 per cent) from the glomerular filtrate is reabsorbed in which part of the nephron?

A

Ascending limb of loop of Henle

B

Distal convoluted tubule

C

Proximnal convoluted tubule

D

Descending limb of loop of Henle

Text Solution

AI Generated Solution

The correct Answer is:
To answer the question regarding where the maximum amount of electrolytes and water (70-80 percent) from the glomerular filtrate is reabsorbed in the nephron, we can follow these steps: ### Step-by-Step Solution: 1. **Understand the Structure of the Nephron**: The nephron consists of several parts, including the Bowman's capsule, proximal convoluted tubule (PCT), loop of Henle, distal convoluted tubule (DCT), and collecting duct. Each part has a specific function in the process of urine formation. 2. **Identify the Process of Urine Formation**: Urine formation occurs in three main steps: - **Filtration**: Blood is filtered in the glomerulus, producing glomerular filtrate. - **Reabsorption**: This is where the body reclaims essential substances from the filtrate. - **Secretion**: Additional waste products are secreted into the filtrate. 3. **Focus on Reabsorption**: The question specifically asks about the reabsorption of electrolytes and water. After filtration, a significant amount of the filtrate is reabsorbed back into the bloodstream. 4. **Locate the Proximal Convoluted Tubule (PCT)**: The PCT is the first segment of the nephron tubule that follows the Bowman's capsule. It is known for its role in reabsorbing a large portion of the filtrate. 5. **Quantify the Reabsorption**: Approximately 70-80% of the electrolytes and water from the glomerular filtrate are reabsorbed in the PCT. This is the highest percentage of reabsorption that occurs in any part of the nephron. 6. **Conclude the Answer**: Based on the information gathered, the correct answer to the question is that the maximum amount of electrolytes and water (70-80%) is reabsorbed in the **Proximal Convoluted Tubule (PCT)**. ### Final Answer: The maximum amount of electrolytes and water (70-80 percent) from the glomerular filtrate is reabsorbed in the **Proximal Convoluted Tubule (PCT)**. ---
To answer the question regarding where the maximum amount of electrolytes and water (70-80 percent) from the glomerular filtrate is reabsorbed in the nephron, we can follow these steps: ### Step-by-Step Solution: 1. **Understand the Structure of the Nephron**: The nephron consists of several parts, including the Bowman's capsule, proximal convoluted tubule (PCT), loop of Henle, distal convoluted tubule (DCT), and collecting duct. Each part has a specific function in the process of urine formation. 2. **Identify the Process of Urine Formation**: Urine formation occurs in three main steps: - **Filtration**: Blood is filtered in the glomerulus, producing glomerular filtrate. ...
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Knowledge Check

  • Assertion: Tubular secretion removes foreign bodies ions and molecules from the body. Reason: As much as 99 per cent of the material in the filtrate is reabsorbed from the body because of tubular secretion.

    A
    If both assertion and reason are true and reason is the correct explanation of assertion
    B
    if both assertion and reason are true but reason is not the correct explanation of assertion.
    C
    if assertion is true but reason is false
    D
    if both assertion and reason are false.

  • The accompanying figure shows reabsorption of some constituents of glomerular filtrate in different parts of mammalian nephron. What can these constituents be?

    A
    `A-Na^(+),B-"Water",C-"Urea"`
    B
    A-Urea, `B-Na^(+)`, C-Water
    C
    A-Water , B-`Na^(+)`,C-Urea
    D
    A-`Na^(+)`,B-urea, C-water

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