Neco 2024 Biology Question 4

Practice essay / theory question 4 from the 2024 Neco Biology examination. This question covers respiration, human anatomy .

Neco 2024 Biology Essay / Theory

Topics: respiration human anatomy

Question 4 NECO • 2024 • BIOLOGY • essay

The diagram shows the human respiratory system with its major structures labelled 1 to 8.

( a )

State the name of each structure corresponding to the labels 1–8 in the diagram.

( b )

Describe, in order, the pathway that air follows from the external environment to the alveoli, referring to the labelled parts in your answer.

( c )

Explain the process of gas exchange that occurs in the alveoli, including the role of partial pressures of oxygen and carbon dioxide.

( d )

Discuss how contraction of the diaphragm (label 8) alters thoracic volume and pressure, and how this change drives inhalation, applying Boyle’s law.

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This is Neco 2024 Biology Question 4. It is one of the essay questions from the 2024 Neco Biology examination.

The question covers respiration, human anatomy .

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