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Fundamentals of Human Physiology 1st Edition by Stuart Ira Fox - Test Bank
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, 1Student: ___________________________________________________________________________
1. The study of how disease or injury alters physiological processes is termed
A. Comparative physiology
B. The scientific method
C. Pathophysiology
D. Anatomy
2. Physiology
A. Emphasizes cause-and-effect mechanisms
B. Includes the fields of chemistry and psychology
C. Ignores the scientific method
D. Ultimately strives to understand the structures of individual cells
3. The term homeostasis is defined as the dynamic constancy of the internal environment.
True False
4. Negative feedback results in a response that opposes that of the original stimulus.
True False
5. Blood clotting is an example of positive feedback since the action of the effector amplifies that of the
stimulus.
True False
6. An integrating center of a negative feedback loop has the function of analyzing information from many
different sensors about deviations from a set point and then altering the activity of particular effectors to
compensate for the deviation.
True False
7. An integrating center sends information to a(n)
A. Sensor
B. Effector
C. Brain region
D. Thermostat
8. The endocrine regulation of blood glucose concentration is an example of a(n)
A. Antagonistic effector
B. Positive feedback loop
C. Negative feedback loop
D. Both antagonistic effector and negative feedback loop are correct
9. ____________ and ____________ are often regulators of effectors in most feedback loops.
A. Enzymes; neurotransmitters
B. Hormones; neurotransmitters
C. Nerves; enzymes
D. Hormones; nerves
E. Enzymes; hormones
10. A decrease in mean arterial pressure is detected by
A. An effector
B. An integrating center
C. A sensor
D. A chemical messenger
,11. Which of the following systems is NOT primarily involved in maintaining homeostasis?
A. The endocrine system
B. The nervous system
C. Both the endocrine system and the nervous system
D. The reproductive system
12. Neutrons are uncharged particles found in the nucleus of an atom.
True False
13. An element with 5 protons, 5 neutrons and 5 electrons would have an atomic number of 15.
True False
14. The atomic nucleus does not contain _______________, which are negatively charged subatomic
particles.
A. Protons
B. Electrons
C. Neutrons
15. An element with 11 neutrons, 11 protons and 11 electrons would have an atomic mass of ____.
A. 11
B. 33
C. 22
D. Cannot be determined
16. The __________ is the physical space which an electron occupies in an atom.
A. Nucleus
B. Orbital
C. Energy level
D. Both orbital and energy level are correct
17. The _______________ electrons are the outer most electrons of an atom.
A. Cation
B. Valence
C. Atomic
D. Anion
18. Molecules with polar covalent bonds are hydrophilic.
True False
19. Negatively charged ions will migrate toward the anode in an electrical field.
True False
20. Hydrogen bonds form between the partially charged atoms of two polar molecules, such as the slightly
negatively charged hydrogen atom of one water molecule and the slightly positively charged oxygen
atom of another.
True False
21. Atoms sharing a pair of electrons form ionic bonds.
True False
22. _______________ bonds are formed when atoms share electrons unequally.
A. Nonpolar covalent
B. Ionic
C. Polar covalent
D. van der Waals
, 23. Hydration spheres can be formed by compounds which contain _______________ bonds.
A. Nonpolar covalent
B. Polar covalent
C. Ionic
D. Both polar covalent and ionic are correct
24. Hydrophobic molecules contain _______________ bonds.
A. Nonpolar covalent
B. Polar covalent
C. Hydrogen
D. Ionic
25. Surface tension between water molecules occurs because adjacent water molecules form _______ bonds
with each other.
A. Nonpolar covalent
B. Polar covalent
C. Hydrogen
D. Ionic
26. An atom with 5 protons, 5 neutrons and 6 electrons would have a net charge of
A. -1
B. -2
C. +1
D. +2
27. Bonds that are formed between oxygen and hydrogen atoms in water molecules are called
A. Hydrogen bonds
B. Ionic bonds
C. Nonpolar covalent bonds
D. Polar covalent bonds
28. The type of bond found in sodium chloride is
A. An ionic bond
B. A polar covalent bond
C. A hydrogen bond
D. A nonpolar covalent bond
29. Which of the following would be most easily broken?
A. A hydrogen bond
B. A nonpolar covalent bond
C. An ionic bond
D. A polar covalent bond
30. The pH of a solution is directly proportional to the hydrogen ion concentration of the solution.
True False
31. Acids release hydrogen ions into solutions.
True False
32. As the pH of the blood decreases, the amount of hydrogen ions in the blood would decrease.
True False
33. When a water molecule dissociates, it forms a/an _______________ ion and a hydrogen ion.
A. Hydroxide
B. Bicarbonate
C. Hydronium
D. Water
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