2 Answers

Mammals are capable of producing hypertonic urine mainly because…

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BIOLOGY

Mammals are capable of producing hypertonic urine mainly because of reabsorption in the

A. bowman’s capsule

B. urethra

C. ureter

D. loop of Henle

QUICK ANSWER…

D

DETAILS…  

Mammals are capable of producing hypertonic urine mainly because of reabsorption in the loop of Henle.

The loop of Henle concerns itself with reabsorption and formation of hypertonic urine through manipulation of ions and water concentrations.

Now for the right answer to the above question:

  1. A is not the right answer. the bowman’s capsule is responsible for the filtration of urine out of the blood, and not reabsorption to alter an already formed urine concentration.
  2. B is incorrect. the urethra does not conduct reabsorption, rather it is simply a small pipe through which spermatozoa and urine are discharged.
  3. C is incorrect. the ureter is another pipe that carries urine from the kidney to the bladder.
  4. D is correct. the loop of Henle is the site where salt and water are recovered from urine.
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KEY-POINTS…

You may please note this/these:

  • Sodium chloride and water concentration in the urine are reduced in the loop of Henle.

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/ culled from 2019 JAMB-UTME biology past question 33 /

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