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Appendix A: Answers to Review Questions

20 APPENDIX A: ANSWERS TO REVIEW

QUESTIONS
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This appendix provides answers to the review questions posted at the end of each chapter.

Homeostasis

1.Meaning of Homeostasis:

A) contributor and provider
B) expand
• C) same or constant
D) receiver

2.What is the normal pH value for body fluid?

A) 7.15-7.25
• B) 7.35-7.45
C) 7.55- 7.65
D) 7.00-7.35
E) 6.5-7.5

3.An example of the urinary system working with the respiratory system to regulate blood pH
would be

A) When you hold your breath the kidneys will remove CO2 from your blood
B) If you exercise a lot your urine will become more acidic
• C) If you have smoke and develop emphysema the kidneys will remove fewer bicarbonate
ions from circulation
D) If you hyperventilate the kidneys will counteract the alkalinity by adding hydrogen ions into
the blood stream
E) None of the above-the urinary system never works with the respiratory system

4.The urge to breathe comes in direct response to:

A) How long it has been since you last took a breath
B) The oxygen concentration of your surrounding environment
C) The buildup of nitrogen within your blood stream
• D) The pH of your blood
E) The buildup of blood pressure that occurs when you don't breathe

5.In response to a bacterial infection my body's thermostat is raised. I start to shiver and produce
more body heat. When my body temperature reaches 101 degrees, I stop shivering and my body
temperature stops going up. This is an example of:

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