Neco 2025 Biology Question 3
Practice objective / multiple choice question 3 from the 2025 Neco Biology examination.
Refer to the labelled diagram of the human circulatory system. The diagram indicates the lengths of the following blood‑vessel segments: Pulmonary vein (PV) = 5 cm, Left atrium to Mitral valve (LA‑MV) = 2 cm, Left ventricle to Aortic arch (LV‑AA) = 3 cm, Aortic arch to Systemic artery (AA‑SA) = 15 cm, Systemic artery to Systemic capillary (SA‑SC) = 30 cm. An oxygen molecule that has just entered the pulmonary vein travels through these segments to reach a systemic capillary where gas exchange occurs. Calculate the total distance (in cm) travelled by the molecule along this path.
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About This Question
This is Neco 2025 Biology Question 3. It is one of the objective questions from the 2025 Neco Biology examination.
Difficulty level: Medium .
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