OBI 814 Review Session Questions updated| Questions and
Answers
1. D.: 1. Iodine move [BLANK] its concentration gradient through the NA-I symporter, a secondary
active transporter at the [BLANK] membrane of the thyroid follicular cell.
A. Down : Apical
B. Down : Basolateral
C. Against: Apical
D. Against : Basolateral
2. C. In the colloid of the thyroid follicle: Where does iodination of tyrosine residues of the
thyroglobulin occur?
A. In the follicular cells of the thyroid follicle
B. In the apical membrane of the thyroid follicle
C. In the colloid of the thyroid follicle
D. At the basolateral membrane of the thyroid follicle
3. D.: 2. Energy is required for:
A. Na movement through Voltage-gated sodium channel
B. Glucose movement through Glucose transporter 4
C. Diffusion of oxygen
D. Endocytosis of LDL
4. D: Energy is required for:
A. Na movement through Voltage-gated sodium channel
B. Glucose movement through Glucose transporter 4
C. Diffusion of oxygen
D. Exocytosis of LDL
5. True: T/F: A local anesthesia lidocaine blocks voltage-gated sodium channels.
6. False, Glucose enters the Skeletal Muscle and Fat through insulin- depen- dent glucose
transporter 4 (GLUT4);: T/F: Insulin causes translocation of the glucose transporter 4 to the plasma
membrane in liver and skeletal muscle.
7. A. Voltage-gated Na+ channels : alpha adrenergic receptors
**GABA is propofol. alpha is vasoconstriction, beta is vasodilation.: During dental extraction,
lidocaine HCl works to block (less pain perception). Co-in-
jection of epinephrine causes local vasoconstriction in the oral tissues by binding
receptors.
A. Voltage-gated Na+ channels : alpha adrenergic receptors
B. Voltage-gated Na+ channels : beta adrenergic receptors
, OBI 814 Review Session Questions updated| Questions and
Answers
C. GABAA receptors :alpha adrenergic receptors
D. GABAA receptors : beta adrenergic receptors
8. Beta: Vasodilation is related to alpha or beta adrenergic receptors
9. Alpha
**Alpha uptight: Vasoconstriction is related to alpha or beta adrenergic receptors
10.B.
**incr --> decr is negative feedback. incr --> incr is positive feedback.: 3. An increase in plasma
glucose causes an [BLANK] of plasma insulin which causes clearance of glucose from the plasma.
This is an example of [BLANK] feedback.
A. Increase : positive
B. Increase : negative
C. Decrease : positive
D. Decrease : negative
11.A.: 4. In a cold day, your body maintains the body temperature via the activation of a reflection
arc. The correct sequence of the reflection arc is: [BLANK] ’ [BLANK] pathway ’ integrating center’
[BLANK] pathway ’ [BLANK] .
A. sensor : afferent : efferent : effector
B. sensor : efferent : afferent : effector
C. effector : afferent : efferent : sensor
D. effector : efferent : afferent : sensor
12.E. Sensor: Which of the following detects changes of a biological parameter such as skin
temperature?
A. Afferent pathway
B. Effector
C. Efferent pathway
D. Integrating center
E. Sensor
13.B. Efferent pathway: Which of the following directly activates effectors?
A. Afferent pathway
B. Efferent pathway
C. Integrating center
D. Sensor
14.A.: 5. Red blood cells in which of the following would most likely lose water and shrink?
, OBI 814 Review Session Questions updated| Questions and
Answers
A. 150 mM NaCl + 50 M glucose ( = 350 mOsM)
B. 100 mM NaCl + 100mM glucose
C. 50 mM NaCl + 150 mM glucose
15.C. 50 mM NaCl + 150 mM glucose (hypotonic): Red blood cells in which of the following would
most likely Gain water and swell?
A. 150 mM NaCl + 50 mM glucose ( = 350 mOsM)
B. 100 mM NaCl + 100mM glucose
C. 50 mM NaCl + 150 mM glucose
16.B. 100 mM NaCl + 100mM glucose (isotonic): Red blood cells in which of the following would
most likely stay isotonic.
A. 150 mM NaCl + 50 mM glucose ( = 350 mOsM)
B. 100 mM NaCl + 100mM glucose
C. 50 mM NaCl + 150 mM glucose
17.A
**measure potency at 50% of max response.: 6. The drug C is _
whereas the drug B is potent. effective
A. least : Least
B. least : most
C. most : least
D. most : most
18.B. Most: The drug A and drug B are what level of effectiveness
A. least
B. most
19.A: Which drug is most potent A.
B.
C.
20.F.: 7. Your patient, a 60-yr old XY male is in an almost perfect oral health. He has taken lovastatin
to control his hypercholesterolism for the last 20 years. Lovastatin decreases blood cholesterol by
decreasing the activity of:
Answers
1. D.: 1. Iodine move [BLANK] its concentration gradient through the NA-I symporter, a secondary
active transporter at the [BLANK] membrane of the thyroid follicular cell.
A. Down : Apical
B. Down : Basolateral
C. Against: Apical
D. Against : Basolateral
2. C. In the colloid of the thyroid follicle: Where does iodination of tyrosine residues of the
thyroglobulin occur?
A. In the follicular cells of the thyroid follicle
B. In the apical membrane of the thyroid follicle
C. In the colloid of the thyroid follicle
D. At the basolateral membrane of the thyroid follicle
3. D.: 2. Energy is required for:
A. Na movement through Voltage-gated sodium channel
B. Glucose movement through Glucose transporter 4
C. Diffusion of oxygen
D. Endocytosis of LDL
4. D: Energy is required for:
A. Na movement through Voltage-gated sodium channel
B. Glucose movement through Glucose transporter 4
C. Diffusion of oxygen
D. Exocytosis of LDL
5. True: T/F: A local anesthesia lidocaine blocks voltage-gated sodium channels.
6. False, Glucose enters the Skeletal Muscle and Fat through insulin- depen- dent glucose
transporter 4 (GLUT4);: T/F: Insulin causes translocation of the glucose transporter 4 to the plasma
membrane in liver and skeletal muscle.
7. A. Voltage-gated Na+ channels : alpha adrenergic receptors
**GABA is propofol. alpha is vasoconstriction, beta is vasodilation.: During dental extraction,
lidocaine HCl works to block (less pain perception). Co-in-
jection of epinephrine causes local vasoconstriction in the oral tissues by binding
receptors.
A. Voltage-gated Na+ channels : alpha adrenergic receptors
B. Voltage-gated Na+ channels : beta adrenergic receptors
, OBI 814 Review Session Questions updated| Questions and
Answers
C. GABAA receptors :alpha adrenergic receptors
D. GABAA receptors : beta adrenergic receptors
8. Beta: Vasodilation is related to alpha or beta adrenergic receptors
9. Alpha
**Alpha uptight: Vasoconstriction is related to alpha or beta adrenergic receptors
10.B.
**incr --> decr is negative feedback. incr --> incr is positive feedback.: 3. An increase in plasma
glucose causes an [BLANK] of plasma insulin which causes clearance of glucose from the plasma.
This is an example of [BLANK] feedback.
A. Increase : positive
B. Increase : negative
C. Decrease : positive
D. Decrease : negative
11.A.: 4. In a cold day, your body maintains the body temperature via the activation of a reflection
arc. The correct sequence of the reflection arc is: [BLANK] ’ [BLANK] pathway ’ integrating center’
[BLANK] pathway ’ [BLANK] .
A. sensor : afferent : efferent : effector
B. sensor : efferent : afferent : effector
C. effector : afferent : efferent : sensor
D. effector : efferent : afferent : sensor
12.E. Sensor: Which of the following detects changes of a biological parameter such as skin
temperature?
A. Afferent pathway
B. Effector
C. Efferent pathway
D. Integrating center
E. Sensor
13.B. Efferent pathway: Which of the following directly activates effectors?
A. Afferent pathway
B. Efferent pathway
C. Integrating center
D. Sensor
14.A.: 5. Red blood cells in which of the following would most likely lose water and shrink?
, OBI 814 Review Session Questions updated| Questions and
Answers
A. 150 mM NaCl + 50 M glucose ( = 350 mOsM)
B. 100 mM NaCl + 100mM glucose
C. 50 mM NaCl + 150 mM glucose
15.C. 50 mM NaCl + 150 mM glucose (hypotonic): Red blood cells in which of the following would
most likely Gain water and swell?
A. 150 mM NaCl + 50 mM glucose ( = 350 mOsM)
B. 100 mM NaCl + 100mM glucose
C. 50 mM NaCl + 150 mM glucose
16.B. 100 mM NaCl + 100mM glucose (isotonic): Red blood cells in which of the following would
most likely stay isotonic.
A. 150 mM NaCl + 50 mM glucose ( = 350 mOsM)
B. 100 mM NaCl + 100mM glucose
C. 50 mM NaCl + 150 mM glucose
17.A
**measure potency at 50% of max response.: 6. The drug C is _
whereas the drug B is potent. effective
A. least : Least
B. least : most
C. most : least
D. most : most
18.B. Most: The drug A and drug B are what level of effectiveness
A. least
B. most
19.A: Which drug is most potent A.
B.
C.
20.F.: 7. Your patient, a 60-yr old XY male is in an almost perfect oral health. He has taken lovastatin
to control his hypercholesterolism for the last 20 years. Lovastatin decreases blood cholesterol by
decreasing the activity of:
