Chapter 17: The Respiratory System: Gas Exchange and Regulation of Breathing

Question 1

The cells of the body consume approximately ___ ml of oxygen and produce approximately ___ ml of carbon dioxide each minute when at rest.

Answer 1

250
200

p. 478

Question 2

To provide the cells with the oxygen they need, an average adult male inhales ____ ml of air per minute, 4200 ml of which reaches the alveoli. About 882 ml of this air (21%) is oxygen. About 250 ml of this oxygen diffuses from the alveoli to the blood for subsequent consumption by the cells of the body; the remaining 632 ml is exhaled. With a consumption of 250 ml of oxygen per minute, the body consumes 360,000 ml of oxygen per day – nearly ___ gallons.

Answer 2

6,000
100

p. 478