2 Answers

The correct sequence of the movement of urea during formation is…

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BIOLOGY

The correct sequence of the movement of urea during formation is

A. glomerulus – Bowman’s capsule – convoluted tubule – Henle’s loop – collecting tubule

B. convoluted tubule – glomerulus – Henle’s loop – Bowman’s capsule – collecting tubule

C. glomerulus – Bowman’s capsule – convoluted tubule – Henle’s loop – convoluted tubule – collecting tubule

D. convoluted tubule – Bowman’s capsule – Henle’s loop -glomerulus – collecting tubule

QUICK ANSWER…

C

DETAILS…  

The correct sequence used by the kidney to successfully filter urea out of the blood is:

Glomerulus – Bowman’s capsule – proximal convoluted tubule – loop of Henle – distal convoluted tubule – collecting tubule

Now for the right answer to the above question:

  1. Option A is incorrect; absence of another convoluted tubule in between Henle’s loop and collecting tubule makes this option wrong.
  2. Option B is incorrect; the filtration starts from a bunch of tiny blood vessels called glomerulus.
  3. C is very correct
  4. D is not the correct answer; the filtration starts from a bunch of tiny blood vessels called glomerulus.

KEY-POINTS…

You may please note that:

  • There are two convoluted tubules present in this sequence.
  • One is before, and the other is after the loop of Henle.
  • The filtration starts from the glomerulus, and empties the waste into the collecting tubule.

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/ culled from 2015 JAMB-UTME biology past question 23 /

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