Neco Model Questions Vol1 2024 Biology Question 6

Practice essay / theory question 6 from the 2024 Neco Model Questions Vol1 Biology examination. This question covers excretion, urinary system, kidney anatomy, nephron function, hormonal regulation of urine .

Neco Model Questions Vol1 2024 Biology Essay / Theory
Topics: excretion urinary system kidney anatomy nephron function hormonal regulation of urine
Question 6 NECO_MODEL_QUESTIONS_VOL1 • 2024 • BIOLOGY • essay
Neco Model Questions Vol1 2024 Biology Question 6 diagram

The diagram shows a labelled illustration of the human urinary system, including the kidneys (cortex, medulla and renal pelvis), a complete nephron (glomerulus, Bowman's capsule, proximal convoluted tubule, descending and ascending limbs of the loop of Henle, distal convoluted tubule and collecting duct), the ureters, urinary bladder and urethra.

Question Parts

( a )
Using the labelled diagram, describe the sequential steps involved in the formation of urine, starting from the filtration of blood in the kidney to the elimination of urine from the body.
( b )
Explain how antidiuretic hormone (ADH) influences water re‑absorption in the nephron. Indicate which segment of the nephron is primarily affected and describe the change in its permeability.
( c )
A patient presents with a blockage in the left ureter. Based on the diagram, discuss the likely physiological effects on kidney function and the possible clinical manifestations that may arise.

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About This Question

This is Neco Model Questions Vol1 2024 Biology Question 6. It is one of the essay questions from the 2024 Neco Model Questions Vol1 Biology examination.

The question covers excretion, urinary system, kidney anatomy, nephron function, hormonal regulation of urine .

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