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Countercurrent Multiplication

The ascending...

Question

The ascending limb of the loop of Henle, transports solutes out and the descending loop transports water out to maintain a gradient, this is called .

A

flow of fluid

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B

single effect

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C

countercurrent

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D

flow of filtrate

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Solution

The correct option is B single effect
The ascending limb of the loop of Henle, transports solutes out and the descending loop transports water out to maintain an osmotic gradient. This process of single effect. These steps are repeated in order to multiply the gradient, hence it is called countercurrent multiplier.

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Similar questions

Maximum amount of water from the glomerular filtrate is reabsorbed in

(a) proximal convoluted tubule

(b) descending limbs of loop of Henle.

(c) ascending limb of loop of Henle.

(d) distal convoluted tubule.

Q. The ascending limb of the loop of Henle, transports solutes out and the descending loop transports water out to maintain a gradient, this is called .

Q. The ascending limb of the loop of Henle, transports solutes (NaCl) out of the tubule lumen with little or no water, generating a hyperosmotic medullary interstitium and delivering a hypoosmotic tubule fluid to the distal tubule. This is called the _____.

Q. Assertion :The renal fluid becomes increasing concentrated when it flows down in the descending limb of loop of Henle towards inner medulla, but its concentration decreases in the ascending limb when it flows towards the cortex. Reason: The descending limb of the loop of Henle water is reabsorbed, the ascending limb is impermeable to water but salt are absorbed.

Q. Select the statements which are correct with respect to loop of Henle in a nephron.
1) Ascending limb of loop of Henle is impermeable to electrolytes, but is permeable to water.
2) Descending limb of loop of Henle is permeable to water but is impermeable to electrolytes
3) Both ascending and descending limbs are permeable to water.
4) Reabsorption is minimum in the ascending limb of loop of Henle.

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