1
Student:
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
, 34. A solution of a pH above 7 is called .
A. Acidic
B. Neutral
C. Basic
35. Bases will protons in a solution.
A. Accept
B. Donate
C. Ignore
D. Repel
36. The pH of a solution increases as the ion concentration decreases.
A. Hydrogen
B. Hydroxide
C. Bicarbonate
D. Sodium
37. In an acidic solution,
A. The OH- ion concentration is greater than the H+ ion concentration
B. The OH- ion concentration is less than the H+ ion concentration
C. The H+ ion concentration is equal to the OH- ion concentration
D. The H+ ion concentration is less than the OH- ion concentration only if the solution is buffered
38. A blood pH of 7.6 is
A. Indicative of acidosis
B. Indicative of alkalosis
C. In the normal physiological range
D. Indicative of effective buffering by the bicarbonate/carbonic acid system
39. Regarding acids and bases,
A. Acids will increase the pH of a solution
B. Bases will decrease the pH of a solution
C. Acids will accept hydrogen ions in a solution
D. Bases will accept hydrogen ions in a solution
40. Fats and carbohydrates are the primary energy stores in the body.
True False
41. Glucose, galactose and fructose can be considered structural isomers of each other.
True False
42. Fructose is a ketone.
True False
43. Covalent bonds are formed between monosaccharides through dehydration synthesis.
True False
44. Carbohydrate molecules have a ratio of twice as many oxygen atoms to carbon atoms.
True False
45. Sucrose is a disaccharide that is composed of and .
A. Glucose and glucose
B. Glucose and galactose
C. Glucose and fructose
D. Fructose and galactose
Student:
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
, 34. A solution of a pH above 7 is called .
A. Acidic
B. Neutral
C. Basic
35. Bases will protons in a solution.
A. Accept
B. Donate
C. Ignore
D. Repel
36. The pH of a solution increases as the ion concentration decreases.
A. Hydrogen
B. Hydroxide
C. Bicarbonate
D. Sodium
37. In an acidic solution,
A. The OH- ion concentration is greater than the H+ ion concentration
B. The OH- ion concentration is less than the H+ ion concentration
C. The H+ ion concentration is equal to the OH- ion concentration
D. The H+ ion concentration is less than the OH- ion concentration only if the solution is buffered
38. A blood pH of 7.6 is
A. Indicative of acidosis
B. Indicative of alkalosis
C. In the normal physiological range
D. Indicative of effective buffering by the bicarbonate/carbonic acid system
39. Regarding acids and bases,
A. Acids will increase the pH of a solution
B. Bases will decrease the pH of a solution
C. Acids will accept hydrogen ions in a solution
D. Bases will accept hydrogen ions in a solution
40. Fats and carbohydrates are the primary energy stores in the body.
True False
41. Glucose, galactose and fructose can be considered structural isomers of each other.
True False
42. Fructose is a ketone.
True False
43. Covalent bonds are formed between monosaccharides through dehydration synthesis.
True False
44. Carbohydrate molecules have a ratio of twice as many oxygen atoms to carbon atoms.
True False
45. Sucrose is a disaccharide that is composed of and .
A. Glucose and glucose
B. Glucose and galactose
C. Glucose and fructose
D. Fructose and galactose
