fundamentals of human physiology 1st edition by stuart_test_bank

, 1
Student:f

1. The study of how disease or injury alters physiological processes is termed
f f f f f f f f f f f


A. Comparative physiology f


B. The scientific method f f


C. Pathophysiology
D. Anatomy
2. Physiology
A. Emphasizes cause-and-effect mechanisms f f


B. Includes the fields of chemistry and psychology f f f f f f


C. Ignores the scientific method f f f


D. Ultimately strives to understand the structures of individual cells f f f f f f f f




3. The term homeostasis is defined as the dynamic constancy of the internal environment. Tru
f f f f f f f f f f f f f


e False
4. Negative feedback results in a response that opposes that of the original stimulus. Tru
f f f f f f f f f f f f f


e False
5. Blood clotting is an example of positive feedback since the action of the effector amplifies that of the stimu
f f f f f f f f f f f f f f f f f f


lus.
True False
6. An integrating center of a negative feedback loop has the function of analyzing information from many differ
f f f f f f f f f f f f f f f f


ent sensors about deviations from a set point and then altering the activity of particular effectors to compensat
f f f f f f f f f f f f f f f f f


e for the deviation.
f f f


True False
7. An integrating center sends information to a(n)
f f f f f f


A. Sensor
B. Effector
C. Brain region f


D. Thermostat
8. The endocrine regulation of blood glucose concentration is an example of a(n)
f f f f f f f f f f f


A. Antagonistic effector f


B. Positive feedback loop f f


C. Negative feedback loop f f


D. Both antagonistic effector and negative feedback loop are correct
f f f f f f f f




9. and f are often regulators of effectors in most feedback loops.
f f f f f f f f


A. Enzymes; neurotransmitters f


B. Hormones; neurotransmitters f


C. Nerves; enzymes f


D. Hormones; nerves f


E. Enzymes; hormones f




10. A decrease in mean arterial pressure is detected by
f f f f f f f f


A. An effector f


B. An integrating center f f


C. A sensor f


D. A chemical messenger
f f

,11. Which of the following systems is NOT primarily involved in maintaining homeostasis?
f f f f f f f f f f f


A. The endocrine system f f


B. The nervous system f f


C. Both the endocrine system and the nervous system
f f f f f f f


D. The reproductive system f f




12. Neutrons are uncharged particles found in the nucleus of an atom. Tru
f f f f f f f f f f f


e False
13. An element with 5 protons, 5 neutrons and 5 electrons would have an atomic number of 15. True
f f f f f f f f f f f f f f f f f


False
14. The atomic nucleus does not contain
f f f f f f


, which are negatively charged subatomic p
f f f f f f


articles.
A. Protons
B. Electrons
C. Neutrons
15. An element with 11 neutrons, 11 protons and 11 electrons would have an atomic mass of
f f f f f f f f f f f f f f f f .
A. 11
B. 33
C. 22
D. Cannot be determined f f




16. The f is the physical space which an electron occupies in an atom. f f f f f f f f f f


A. Nucleus
B. Orbital
C. Energy level f


D. Both orbital and energy level are correct
f f f f f f




17. The f electrons are the outer most electrons of an atom.
f f f f f f f f


A. Cation
B. Valence
C. Atomic
D. Anion
18. Molecules with polar covalent bonds are hydrophilic. T
f f f f f f f


rue False
19. Negatively charged ions will migrate toward the anode in an electrical field. Tru
f f f f f f f f f f f f


e False
20. Hydrogen bonds form between the partially charged atoms of two polar molecules, such as the slightly negat
f f f f f f f f f f f f f f f f


ively charged hydrogen atom of one water molecule and the slightly positively charged oxygen atom of ano
f f f f f f f f f f f f f f f f


ther.
True False
21. Atoms sharing a pair of electrons form ionic bonds. Tr
f f f f f f f f f


ue False
22. bonds are formed when atoms share electrons unequally. f f f f f f f


A. Nonpolar covalent f


B. Ionic
C. Polar covalent f


D. van der Waals f f

, 23. Hydration spheres can be formed by compounds which contain f f f f f f f f f bonds.
A. Nonpolar covalent f


B. Polar covalent f


C. Ionic
D. Both polar covalent and ionic are correct f f f f f f




24. Hydrophobic molecules contain f f f bonds.
A. Nonpolar covalent f


B. Polar covalent f


C. Hydrogen
D. Ionic
25. Surface tension between water molecules occurs because adjacent water molecules form
f f f f f f f f f f f


bonds
with each other.
f f f


A. Nonpolar covalent f


B. Polar covalent f


C. Hydrogen
D. Ionic
26. An atom with 5 protons, 5 neutrons and 6 electrons would have a net charge of
f f f f f f f f f f f f f f f


A. -1
B. -2
C. +1
f


D. +2
f




27. Bonds that are formed between oxygen and hydrogen atoms in water molecules are called
f f f f f f f f f f f f f


A. Hydrogen bonds f


B. Ionic bonds f


C. Nonpolar covalent bonds f f


D. Polar covalent bonds f f




28. The type of bond found in sodium chloride is
f f f f f f f f


A. An ionic bond f f


B. A polar covalent bondf f f


C. A hydrogen bond f f


D. A nonpolar covalent bond
f f f




29. Which of the following would be most easily broken?
f f f f f f f f


A. A hydrogen bond f f


B. A nonpolar covalent bond
f f f


C. An ionic bond f f


D. A polar covalent bondf f f




30. The pH of a solution is directly proportional to the hydrogen ion concentration of the solution. True
f f f f f f f f f f f f f f f f


False
31. Acids release hydrogen ions into solutions. T
f f f f f f


rue False
32. As the pH of the blood decreases, the amount of hydrogen ions in the blood would decrease. True
f f f f f f f f f f f f f f f f f


False
33. When a water molecule dissociates, it forms a/an
f f f f f f f f ion and a hydrogen ion.
f f f f


A. Hydroxide
B. Bicarbonate
C. Hydronium
D. Water