Neco 2018 Biology Question 4

Practice essay / theory question 4 from the 2018 Neco Biology examination. This question covers respiration, human anatomy .

Neco 2018 Biology Essay / Theory

Topics: respiration human anatomy

Question 4 NECO • 2018 • BIOLOGY • essay

The labelled diagram of the human respiratory system is provided. Answer the following questions.

Question Parts

( a )

List the structures shown in the diagram in the correct order that air passes through from the external environment to the site of gas exchange.

( b )

Describe the pathway of air from entry to the alveoli, indicating the function of each structure listed in part (a).

( c )

Explain the mechanism of external gas exchange in the alveoli, including the role of partial pressure gradients.

( d )

Discuss how exposure to high altitude (≈3000 m above sea level) affects the respiratory process and list two physiological adaptations that help maintain oxygen supply.

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About This Question

This is Neco 2018 Biology Question 4. It is one of the essay questions from the 2018 Neco Biology examination.

The question covers respiration, human anatomy .

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