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Biology Paper 1 > lungs > Flashcards

lungs Flashcards

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AP® Biology flashcards Biology 101 flashcards
1
Q

how does air move in and out of the lungs

A

trachea
bronchi
bronchioles
alveoli

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2
Q

what are alveoli surrounded by

A

blood capillaries

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3
Q

how does alveoli carry out gas exchange

A

blood comes into lungs through capillaries with lots of co2 and little o2
o2 diffuses into alveolus
co2 diffuses out of blood into air in the alveolus

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Biology Paper 1 (24 decks)

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