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Maximum dehydration takes place that of

   Maximum dehydration takes place that of

Objective Chemistry for NEET

Objective Chemistry for NEET

A.K. Singhal, U. K.… 1st Edition

Chapter 11, Problem 144

Instant Answer

Solved by Expert Narayan Hari

10/14/2021

Step 1

This means that it pulls electrons towards itself, making the hydrogen atoms in the CH2 group more positive. This is represented as: \[ \text{C} = \text{O} \quad \text{and} \quad \text{CH}_2 \] Show more…

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Key Concepts

Loop of Henle

The Loop of Henle is a key structure in the nephron that creates a concentration gradient in the medulla of the kidney. Its descending limb is permeable to water, allowing water to exit the tubular fluid, whereas its ascending limb is impermeable to water but actively transports ions out. This unique arrangement is fundamental to the kidney's ability to modify urine concentration, leading to either concentration or dilution of the fluid.

Thick Ascending Limb (Diluting Segment)

Within the Loop of Henle, the thick ascending limb is particularly important for maximum dehydration, or dilution, of the tubular fluid. In this segment, active reabsorption of electrolytes occurs without accompanying water reabsorption, resulting in the formation of hypotonic filtrate. This process is critical for producing diluted urine and maintaining overall fluid and electrolyte balance.

Countercurrent Multiplier Mechanism

The countercurrent multiplier mechanism is an essential concept in understanding renal concentrating and diluting processes. It refers to the interaction between the flowing filtrate in the Loop of Henle and the surrounding interstitial fluid, which is maintained by the differential permeability of the limb segments. This system allows for the establishment of a steep osmotic gradient in the renal medulla, enabling fine regulation of water and solute reabsorption throughout the nephron.

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