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MCAT Biology Practice Test 12: Interactions with the Environment
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MCAT Biology Practice Test 12: Interactions with the Environment
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25 Questions

1. Intrinsic factor allows the absorption of vitamin B12 within the
2. Which of the following is NOT a function performed by the liver?
3. Which of the following is NOT a section of the large intestine?
4. Which of the following conditions generally does NOT interfere with gas exchange within the alveoli?
5. Which of the following is NOT a function of the material(s) produced by parietal cells within the stomach?
6. Which of the following is NOT descriptive of the small intestine?
7. Boyle’s law is important in understanding the breathing mechanism. It states that
8. Amylase is released into the digestive tract in which region(s)?
9. Nephrons can be found within which kidney region(s)?
10. Which of the following is true about the absorption of carbohydrates?
11. The nasal turbinates have several roles within the respiratory system. Which of the following is NOT one of those roles?
12. If the atmosphere contains 78 percent nitrogen and 21 percent oxygen, about what percentage of the total blood gases is nitrogen?
13. Bile is composed of which of the following combinations of substances?
14. Which of the following represents the correct sequence of the passage of urine in a nephron?
15. When a person enters chronic renal failure, which of the following would be likely to be observed?
16. When a gallstone is passed, where does it go?
17. Which of the following provides the best description of the anatomy of the lungs?
18. What is the function of the septal cells found within the alveoli of the lungs?
19. Alcohol intake increases urination by
20. The kidneys have a role in all of the following EXCEPT
21. What is the physiologic response when someone increases their water intake?
22. Materials exit the blood and enter the urine in the
23. The movement of respiratory mucus helps protect the respiratory tree. Which of the following is true about this mechanism?
24. Stimulation of chemoreceptors can affect lung function. Which of the following does NOT occur when alveolar CO2 levels get too high?
25. What is the fate of CO2 acquired in the tissue capillaries when it enters the blood?

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