Statistics for A Level PE - The Respiratory System 1.2

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Definition	Keyword	% Correct
The movement of gas molecules from an area of high concentration or partial pressure to an area of low concentration or partial pressure	Diffusion	94%
Volume of air breathed in or out per breath (increases during exercise)	Tidal Volume	69%
Volume of air breathed in or out per minute (increases during exercise)	Minute ventilation	47%
The movement of oxygen from the air into blood, and carbon dioxide from the blood into the air	Gaseous exchange	42%
The amount of air that remains in the lungs after maximal expiration (remains the same during exercise)	Residual volume	39%
Microscopic hair-like projections that help sweep away fluids and particles	Cilia	36%
A device that is used to measure the volume of air inspired and expired by the lungs	Spirometer	36%
Volume of air that can be forcibly expired after a normal breath (slightly decreases during exercise)	Expiratory reserve volume	33%
Volume of air that can be forcibly inspired after a normal breath (decreases during exercise)	Inspiratory reserve volume	33%
The pressure exerted by an individual gas when it exists within a mixture of gases	Partial pressure	33%
Long-term, progressive disease of the lungs, caused by smoking, that results in shortness of breath	Emphysema	17%
The greatest volume of air that can be expelled from the lungs after taking the deepest possible breath	Vital capacity	17%
The steeper this gradient, the faster diffusion occurs	Concentration diffusion gradient	11%