Gas Exchange at the Alveoli (Edexcel GCSE Physical Education): Flashcards
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Practise the cards
12 cards from this deck
Gases move from ___ to ___ concentration
Gases move from ___ to ___ concentration
High to low concentration
What O2 binds with in blood
What O2 binds with in blood
Haemoglobin
O2 + haemoglobin forms
O2 + haemoglobin forms
Oxyhaemoglobin
Where oxyhaemoglobin is transported
Where oxyhaemoglobin is transported
Working muscles
What oxyhaemoglobin is used for
What oxyhaemoglobin is used for
Aerobic activity
Waste product of aerobic activity
Waste product of aerobic activity
Carbon dioxide
What removes CO2 from muscles
What removes CO2 from muscles
Haemoglobin
Where does gaseous exchange occur? (2 sites)
Where does gaseous exchange occur? (2 sites)
Alveoli-capillaries & capillaries-muscle tissue
Thickness of alveoli walls
Thickness of alveoli walls
One cell thick
Surface area of alveoli
Surface area of alveoli
Very large surface area
What surrounds alveoli
What surrounds alveoli
Capillaries
Characteristics of alveoli walls
Characteristics of alveoli walls
Moist and thin