McGraw-Hill Online Learning Center Test<BLURT>

McGraw-Hill Online Learning Center Test

1. Review the animation and answer the following questions.

Smoking has been shown to increase the risks of all of the following EXCEPT

A. lung cancer.
B. exhalation of carbon dioxide.
C. chronic bronchitis.
D. emphysema.

2. Carbon monoxide is most dangerous because it A. can cause damage to cells by direct contact.
B. will outcompete oxygen for binding to hemoglobin.
C. will kill red blood cells.
D. can cause lung cancer.

3. Inhalation of carbon monoxide by pregnant mothers can be especially dangerous to their unborn child because A. carbon monoxide will build up in the infant's brain.
B. carbon monoxide will accumulate in the infant's lungs.
C. the unborn child receives oxygen from the mother's blood.
D. it can cause birth defects.

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