Waec Model Questions Vol1 2020 Biology Question 6

Practice essay / theory question 6 from the 2020 Waec Model Questions Vol1 Biology examination. This question covers excretion, urinary system, nephron .

Waec Model Questions Vol1 2020 Biology Essay / Theory
Topics: excretion urinary system nephron
Question 6 WAEC_MODEL_QUESTIONS_VOL1 • 2020 • BIOLOGY • essay

The diagram shows the human excretory system with numbered parts.

Question Parts

( a )
Identify the structures indicated by the numbers 1–8 in the diagram.
( b )
State the primary function of each labelled structure.
( ) Kidney
( ) Ureter
( ) Urinary bladder
( ) Urethra
( ) Glomerulus
( ) Bowman's capsule
( ) Loop of Henle
( ) Collecting duct
( c )
Explain the process of urine formation, describing the role of each part of the nephron.
( ) Filtration in glomerulus and Bowman's capsule
( ) Reabsorption in proximal convoluted tubule
( ) Concentration in loop of Henle
( ) Secretion in distal convoluted tubule
( ) Collection in collecting duct
( d )
Compare the excretory mechanisms of humans with those of a freshwater fish, highlighting two major differences.

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About This Question

This is Waec Model Questions Vol1 2020 Biology Question 6. It is one of the essay questions from the 2020 Waec Model Questions Vol1 Biology examination.

The question covers excretion, urinary system, nephron .

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