Neco 2020 Biology Question 10
Practice objective / multiple choice question 10 from the 2020 Neco Biology examination.
A trained athlete has a maximal oxygen uptake (\(\dot V_{O_2\,max}\)) of 3.2 L min⁻¹. His haemoglobin concentration is 14 g dL⁻¹, arterial oxygen saturation is 97 %, arterial PaO₂ is 95 mmHg, venous oxygen saturation is 75 % and venous PvO₂ is 40 mmHg. The O₂‑binding capacity of haemoglobin is 1.34 mL O₂ g⁻¹ Hb and the solubility of O₂ in plasma is 0.0031 mL O₂ 100 mL⁻¹ mmHg⁻¹. Using the Fick principle, calculate the cardiac output (in L min⁻¹) at maximal exercise. Give your answer to the nearest whole litre per minute.
Answer Options
About This Question
This is Neco 2020 Biology Question 10. It is one of the objective questions from the 2020 Neco Biology examination.
Difficulty level: Medium .
Master the Exam!
You've seen a preview, but there are thousands more questions plus AI tutor to break down complex solutions.