Cigarette smoke can affect the white blood cells that reside in our lungs,whose purpose is to
A) prevent emphysema.
B) enhance oxygen and carbon dioxide exchange.
C) maintain appropriate pH and moisture levels within the lungs.
D) engulf foreign particles.
Correct Answer:
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Q5: The maximum amount of air that a
Q6: Why do cigarette smokers cough more than
Q7: A waste product of respiration is
A)electrons.
B)glucose.
C)carbon dioxide.
D)hydrogen
Q8: Most CO2 is transported to the lungs
Q9: Air leaving human lungs during exhalation contains
A)no
Q11: During gas exchange,body cells
A)take up CO2 from
Q12: The oxygen- carrying component in red blood
Q13: Within the lungs,gas exchange occurs across
A)bronchi.
B)alveoli.
C)bronchioles.
D)diaphragms.
Q14: Which of the following is a function
Q15: What name is given to the sheet
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