Veins contain valves to
Salam Academy Original Practice · Proposed mark scheme
Practise
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12 questions
Arteries have elastic tissue to
Salam Academy Original Practice · Proposed mark scheme
At the arterial end of a capillary, tissue fluid forms because
Salam Academy Original Practice · Proposed mark scheme
The S-shaped dissociation curve results from
Salam Academy Original Practice · Proposed mark scheme
The Bohr shift moves the curve to the right when
Salam Academy Original Practice · Proposed mark scheme
Fetal haemoglobin's curve lies to the left of adult haemoglobin, so it
Salam Academy Original Practice · Proposed mark scheme
Most CO₂ is carried in the blood as
Salam Academy Original Practice · Proposed mark scheme
The enzyme that converts CO₂ and water to carbonic acid in red cells is
Salam Academy Original Practice · Proposed mark scheme
The chloride shift is
Salam Academy Original Practice · Proposed mark scheme
Capillary walls are one cell thick to
Salam Academy Original Practice · Proposed mark scheme
Blood is 98% saturated in the lungs and 30% in muscle. Saturated blood carries 20 cm³ O₂ per 100 cm³. How much O₂ (cm³) is released per 100 cm³ of blood?
Salam Academy Original Practice · Proposed mark scheme
People living at high altitude develop
Salam Academy Original Practice · Proposed mark scheme