deck Flashcards Preview

(Biology 1): 6/10,1/10,1/11,6/11,1/12,6/12,1/13, 6/13 > deck > Flashcards

Flashcards in deck Deck (1)
Loading flashcards...
1
Q

Describe and explain how the lungs are adapted to allow rapid exchange of oxygen between air in the alveoli and blood in the capillaries around them.

A

1 Many alveoli / alveoli walls folded provide a large surface area;2 Many capillaries provide a large surface area;3 (So) fast diffusion;________________________________________________4 Alveoli or capillary walls / epithelium / lining are thin / short distance between alveoli and blood;5 Flattened / squamous epithelium;6 (So) short diffusion distance / pathway;7 (So) fast diffusion;________________________________________________8 Ventilation / circulation;9 Maintains a diffusion / concentration gradient;10 (So) fast diffusion;