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We can produce a concentrated/ dilute urine. This is facilitated by a special mechanism. Identify the mechanism. - Biology

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प्रश्न

We can produce a concentrated/ dilute urine. This is facilitated by a special mechanism. Identify the mechanism.

पर्याय

  • Reabsorption from PCT

  • Reabsorption from Collecting Duct

  • Reabsorption/Secretion in DCT

  • Counter current mechanism in Henle’s loop/Vasa recta

MCQ
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उत्तर

Counter current mechanism in Henle’s loop/Vasa recta

Explanation:

Counter current mechanism operates between the two limbs of the loop of Henle and those of vasa recta. The filtrate becomes concentrated when it moves down the descending limb but is diluted by the ascending limb.

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पाठ 19: Excretory Products and Their Elimination - Exercises [पृष्ठ १११]

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एनसीईआरटी एक्झांप्लर Biology [English] Class 11
पाठ 19 Excretory Products and Their Elimination
Exercises | Q 14. | पृष्ठ १११

संबंधित प्रश्‍न

Ascending limb of Henle’s loop is ______ to water, whereas the descending limb is ______to it.


Define excretion. Write the four organs of the human urinary system in their correct sequence. 


Find the odd one out. Give a reason for your choice.

skin, heart, lung, liver, kidney  


Why is excretion necessary? Name the common excretory substance in our body. 


Choose the odd one out in the following series:
Kidney, ureter, heart


Name the following:
Organ which stores urine.


The given diagram represents a nephron and its blood supply. Study the diagram and answer the following question :

Name the blood vessel which contains the least amount of urea in this diagram.


Draw a neat and well labeled diagram of human excretory system. 


Describe about physical properties of urine


Write the functional activity of the following structure:

Urethra


Name the Following
Major excretory organs of man.


Complete the following sentence with appropriate word:

The process of removing the metabolic waste from the body is known as ______.


Circle the odd one.


Differentiate the following.

Excretion and Secretion


Malpighian tubules remove excretory products from ______.


Identify the biological term

Removal of unwanted substances from the body.


Identify the structures present in the cortex of the kidney.


______ is sac–like in shape.


The renal cortex has a dotted appearance, and the Renal medulla has a striped appearance. Explain.


Name the following:

The organ through which urea is released outside the body of a human being.


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