Chapter 1—Introduction to Physiology and Homeostasis
MULTIPLE CHOICE
1. Select the incorrect association.
a. anatomy/function
b. human body/multicellular.
c. carbon dioxide/cell waste product.
d. physiology/body function.
e. unicellular/one-celled.
ANS: A PTS: 1
2. Which of the following emphasizes mechanism over purpose?
a. a person breathes to obtain oxygen.
b. a person sweats to cool off.
c. a person's stomach secretes digestive juices because it is stimulated by the nervous
system.
d. a person's heart beats to pump blood.
e. a person's kidneys produce urine to eliminate wastes from the body.
ANS: C PTS: 1
3. When a blood capillary is cut, a clot forms under which influence?
a. negative feedback.
b. positive feedback.
, c. extrinsic control.
d. both (a) and (b) above.
e. none of these answers.
ANS: B PTS: 1
4.
The smallest functional unit in the human body from a physiologic perspective is the:
a. nucleus
b. atom
c. cell
d. tissue
ANS: C PTS: 1
5. Which of the following is associated with communication between body cells?
a. connective.
b. epithelial.
c. glandular.
d. muscle.
e. nervous
ANS: E PTS: 1
,6. Which of the following factors of the internal environment is not homeostatically
maintained?
a. its concentration of nutrient molecules.
b. its concentration of nitrogen gas, of which 80% of the atmospheric air is composed.
c. its concentration of oxygen and carbon dioxide.
d. its pH.
e. its temperature.
ANS: B PTS: 1
7. This tissue type includes blood and bones.
a. connective.
b. endocrine.
c. epithelial.
d. muscle.
e. nervous.
ANS: A PTS: 1
8. The respiratory system
a. obtains oxygen from and eliminates carbon dioxide to the internal environment.
b. consists of the heart, blood vessels and lungs.
c. plays an important role in maintaining the proper pH of the internal environment by
adjusting the rate of removal of acid-forming carbon dioxide.
d. both (a) and (c) above.
, e. all of these answers.
ANS: C PTS: 1
9. Select the correct statement about muscle tissue
a. bone is one example.
b. blood is one example.
c. hemoglobin can be found in the extracellular material.
d. there are 3 different types of muscle
e. it is not a primary tissue type.
ANS: D PTS: 1
10. Which of the following body systems is not directed entirely toward maintaining
homeostasis?
a. reproductive system.
b. endocrine system
c. nervous system.
d. both b and c
e. none of the above answers
ANS: A PTS: 1
11. Which sequence represents the correct hierarchy of biological organization?
a. cell-organ-tissue-system-organism.
b. cell-tissue-organ-system-organism.
c. tissue-cell-system-organism-organ.
MULTIPLE CHOICE
1. Select the incorrect association.
a. anatomy/function
b. human body/multicellular.
c. carbon dioxide/cell waste product.
d. physiology/body function.
e. unicellular/one-celled.
ANS: A PTS: 1
2. Which of the following emphasizes mechanism over purpose?
a. a person breathes to obtain oxygen.
b. a person sweats to cool off.
c. a person's stomach secretes digestive juices because it is stimulated by the nervous
system.
d. a person's heart beats to pump blood.
e. a person's kidneys produce urine to eliminate wastes from the body.
ANS: C PTS: 1
3. When a blood capillary is cut, a clot forms under which influence?
a. negative feedback.
b. positive feedback.
, c. extrinsic control.
d. both (a) and (b) above.
e. none of these answers.
ANS: B PTS: 1
4.
The smallest functional unit in the human body from a physiologic perspective is the:
a. nucleus
b. atom
c. cell
d. tissue
ANS: C PTS: 1
5. Which of the following is associated with communication between body cells?
a. connective.
b. epithelial.
c. glandular.
d. muscle.
e. nervous
ANS: E PTS: 1
,6. Which of the following factors of the internal environment is not homeostatically
maintained?
a. its concentration of nutrient molecules.
b. its concentration of nitrogen gas, of which 80% of the atmospheric air is composed.
c. its concentration of oxygen and carbon dioxide.
d. its pH.
e. its temperature.
ANS: B PTS: 1
7. This tissue type includes blood and bones.
a. connective.
b. endocrine.
c. epithelial.
d. muscle.
e. nervous.
ANS: A PTS: 1
8. The respiratory system
a. obtains oxygen from and eliminates carbon dioxide to the internal environment.
b. consists of the heart, blood vessels and lungs.
c. plays an important role in maintaining the proper pH of the internal environment by
adjusting the rate of removal of acid-forming carbon dioxide.
d. both (a) and (c) above.
, e. all of these answers.
ANS: C PTS: 1
9. Select the correct statement about muscle tissue
a. bone is one example.
b. blood is one example.
c. hemoglobin can be found in the extracellular material.
d. there are 3 different types of muscle
e. it is not a primary tissue type.
ANS: D PTS: 1
10. Which of the following body systems is not directed entirely toward maintaining
homeostasis?
a. reproductive system.
b. endocrine system
c. nervous system.
d. both b and c
e. none of the above answers
ANS: A PTS: 1
11. Which sequence represents the correct hierarchy of biological organization?
a. cell-organ-tissue-system-organism.
b. cell-tissue-organ-system-organism.
c. tissue-cell-system-organism-organ.
