Relate branching airways, surfactant, capillary networks and extensive alveolar area to gas exchange in mammals.
Tę umiejętność sprawdza 5 zadań wzorowanych na arkuszach IB z lat 2022–2025.
Destruction of walls between neighbouring alveoli leaves larger air spaces in a lung. What direct effect impairs gas exchange? A. The total respiratory surface area is reduced B. The diffusion path through every remaining cell becomes zero C. The blood gains…
(a) Outline anaerobic cell respiration. (b) Describe conditions that allow efficient gas exchange in human lungs.
(a) Outline the route and processes by which carbon dioxide in blood arriving at the lungs reaches the outside air. (b) Explain why final urine can contain more concentrated urea than blood plasma. (c) Compare excretion in humans with excretion in a freshwater…
(a) Outline the route and processes by which carbon dioxide in blood arriving at the lungs reaches the outside air. (b) Explain why final urine can contain more concentrated urea than blood plasma. (c) Compare excretion in humans with excretion in a freshwater…
Which combination correctly matches structures around a mammalian alveolus to their roles? A. Type I cell: surfactant secretion; type II cell: main thin diffusion surface; capillary: carries inhaled air B. Type I cell: gas diffusion; type II cell: surfactant…
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