Neco 2024 Biology Question 45

Practice objective / multiple choice question 45 from the 2024 Neco Biology examination.

Neco 2024 Biology Objective / Multiple Choice Medium Difficulty

Question 45 NECO • 2024 • BIOLOGY • objective

The labelled diagram of the human respiratory system indicates the site of gas exchange. (a) Name the structure where external respiration occurs. (b) Given that the total alveolar surface area is 70 m² and the total lung volume is 6 L, calculate the surface‑area‑to‑volume ratio in \(\text{m}^2\,\text{L}^{-1}\) (round to one decimal place).

A. Bronchioles; 9.5\,m^{2}\,L^{-1}

B. Alveoli; 9.8\,m^{2}\,L^{-1}

Correct Answer C. Alveoli; 11.7\,m^{2}\,L^{-1}

D. Trachea; 12.3\,m^{2}\,L^{-1}

Correct Answer

Correct Option:

Alveoli; 11.7\,m^{2}\,L^{-1}

This is Neco 2024 Biology Question 45. It is one of the objective questions from the 2024 Neco Biology examination.

Difficulty level: Medium .

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