Igcse Model Questions Vol1 2022 Biology Question 6

Practice essay / theory question 6 from the 2022 Igcse Model Questions Vol1 Biology examination. This question covers Excretion, Kidney function, Urine formation .

Igcse Model Questions Vol1 2022 Biology Essay / Theory

Topics: Excretion Kidney function Urine formation

Question 6 IGCSE_MODEL_QUESTIONS_VOL1 • 2022 • BIOLOGY • essay

A healthy adult human kidney filters about 180 L of plasma per day. The final urine volume is approximately 1.5 L per day. Answer the following:

Question Parts

( a )

Describe the three main processes that occur in the nephron to produce urine, indicating where each process takes place.

( b )

Calculate the average concentration factor (the ratio of the concentration of solutes in the final urine to that in the initial filtrate) for this kidney. Show your reasoning.

( c )

Explain how the hormone antidiuretic hormone (ADH) modifies the concentration factor and describe the structural change in the nephron that underlies this effect.

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About This Question

This is Igcse Model Questions Vol1 2022 Biology Question 6. It is one of the essay questions from the 2022 Igcse Model Questions Vol1 Biology examination.

The question covers Excretion, Kidney function, Urine formation .

View More Igcse Model Questions Vol1 2022 Biology Questions More Igcse Model Questions Vol1 Practice Questions Back to Questions

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