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MOVE CURSOR OVER ANSWERS: DO NOT CLICK MOUSE
1. Another name for the conducting zone of the lung is:
A. Pulmonary circulation
B. Respiratory zone
C. Anatomical dead space
D. None of the above
2. Dry atmospheric air has what percent oxygen?
A. 79.03%
B. 0.03%
C. 10.39%
D. 20.93%
3. Volume of air ventilated into and out of the lung with each breath?
A. Tidal volume
B. Residual volume
C. Vital capacity
D. Inspiratory capacity
4. What percent of oxygen is transported in the plasma of the blood?
A. 98%
B. 20%
C. 2%
D. 100%
5. Do the ventilation muscles fatigue during max exercise with endurance-trained persons?
A. Yes
B. Unclear
C. No
D. Only when the upper body is submerged
6. What is the most studied and widely distributed second messenger (with non-steroid hormones)?
A. GTP
B. ATP
C. ADP
D. cyclic AMP or cAMP
7. What enzyme catalyzes conversion of CO2 to carbonic acid?
A. 2.3 DPG
B. Carbaminohemoglobin
C. Bicarbonate
D. Carbonic anhydrase
8. A given hemoglobin molecule can bind how many oxygen molecules?
A. 4
B. 6
C. 8
D. 10
9. Effects of temperature, pH, and PCO2 on the oxy-hemoglobin dissociation curve?
A. Haldane effect
B. Bohr effect
C. Daltons law
D. Boyles law
10. Term used when the four heme groups of hemoglobin are all binding oxygen?
A. Unloaded
B. At equilibrium
C. Saturated
D. None of the above
11. What is the oxygen content of arterial blood?
A. 2 ml oxygen per 100 ml blood
B. 20 ml oxygen per 100 ml blood
C. 40 ml oxygen per 100 ml blood
D. 60 ml oxygen per 100 ml blood
12. Predominant glucose transporter protein on sarcolemma of muscle fiber:
A. Glucagon
B. Insulin
C. GLUT4
D. GLUT2
13. Steroid hormones are hydrophobic which means:
A. Soluble in water
B. Transported in water
C. Insoluble in water
D. They cannot pass through the cell membrane
14. What is the most common type of diabetes?
A. Type I
B. Type II
C. Juvenile-onset
D. Insulin dependent
15. If blood plasma decreases, what happens to plasma osmolality?
A. Decreases
B. Stays the same
C. Fluctuates up and down
D. Increases
16. What is the substance found on the alveolar membranes that functions to decrease surface tension and improve compliance
A. Water vapor
B. Epithelium
C. Surfactant
D. Sodium bicarbonate
17. How many alveoli are in your lungs?
A. 3000
B. 30,000
C. 300,000
D. 300 million
18. What is the maximal amount of air that can be exhaled from the lungs?
A. Tidal volume
B. Residual volume
C. Vital capacity
D. Inspiratory capacity
19. How is the majority of carbon dioxide transported in the blood?
A. Reacts with water to form carbonic acid
B. Dissolves in the plasma
C. Forms carbaminohemoglobin
D. Is transported as bicarbonate
20. Exercise induced asthma (EIA) also called exercise induced bronchoconstriction (EIB) usually occurs when?
A. First few minutes of exercise
B. About 15 minutes in exercise
C. About 5 to 10 minutes after exercise
D. 30 minutes after exercise
21. What is DYSPNEA?
A. Overbreathing
B. Respiratory procedure performed during certain types of exercise
C. Anticipation or anxiety to exercise
D. Shortness of breath during exercise
22. What is the Valsalva maneuver?
A. Overbreathing
B. Forced expiration, increased pressure, elevated arterial pressure (trachea closed)
C. Anticipation or anxiety to exercise
D. Shortness of breath during exercise
23. What is insulin’s main function?
A. Promote gluconeogenesis
B. Reduce amount of glucose circulating in the blood
C. Inhibit glycogenesis
D. Increase amount of glucose circulating in the blood
24. What does erythropoietin do?
A. Regulates red blood cell production by stimulating bone marrow cells
B. Promotes development of female secondary sex characteristics
C. Promotes the secretory phase of menstrual cycle
D. Responsible for the development of the male secondary sex characteristics
25. Triglycerides are reduced to FFA and glycerol by what lipase enzyme?
A. Lipoprotein lipase
B. Hormone sensitive lipase
C. Insulin
D. Renin
Complete!