Immunology Final Exam Questions With Correct Answers.

Immunology Final Exam Questions With Correct
Answers

Which |of |the |following |is |NOT |apart |of |the |Acquired |Immune |System?

a. |Passive |Immunization

b. |Active |Immunization

c. |Physiological |and |Chemical |Barriers

d. |None |of |the |above |- |CORRECT |ANSWER✔✔-C. |Physiological |and |Chemical |Barriers



What |are |the |characteristics |of |the |Immune |Response?

a. |Adaptive

b. |Indiscrimination |between |self |and |none-self

c. |A |& |B

d. |A |& |C

e. |All |the |above |- |CORRECT |ANSWER✔✔-d. |A |& |C



Which |of |the |following |is |true |about |antigen-presenting |cells?

a. |They |are |macrophages

b. |Present |antigens |to |T-cells

c. |MHC |complexes |are |present |upon |them

d. |All |the |above

e. |None |of |the |above |- |CORRECT |ANSWER✔✔-d. |All |the |above



What |characteristic |is |true |about |the |clonal |selection |theory?

,a. |Recognizes |foreign |molecules

b. |Self-reactive |epitopes |are |shut |off

c. |Very |few |antigen |specificities |present |before |antigenic |contact

d. |Both |A |& |B

e. |Both |B |& |C

f. |All |of |the |above |- |CORRECT |ANSWER✔✔-d. |Both |A |& |B



What |is |true |about |lymphocytes?

a. |B |Lymphocytes |secrete |antibodies

b. |T |Lymphocytes |secrete |cytokines

c. |There |are |multiple |specificities |per |lymphocytes

d. |Both |A |& |B

e. |All |the |above |- |CORRECT |ANSWER✔✔-d. |Both |A |& |B



Antibody |interactions |are:

a. |strong |with |covalent |bonds

b. |weak |with |covalent |bonds

c. |strong |with |Van |der |Waals |forces

d. |Weak |with |Van |der |Waals |forces

e. |Contain |both |weak |and |strong |bonds |- |CORRECT |ANSWER✔✔-d. |Weak |with |Van |der |Waals |
forces



Which |type |of |T-Cell |kills |other |cells?

a. |helper

b. |cytotoxic

c. |DHT

,d. |All |the |above |- |CORRECT |ANSWER✔✔-b. |cytotoxic



What |are |the |characteristics |of |innate |immunity?

a. |Non-specific

b. |Born |with |it

c. |Body's |second |line |of |defense

d. |A |& |B

e. |B |& |C

f. |A |& |C |- |CORRECT |ANSWER✔✔-d. |A |& |B



Which |of |the |following |is |NOT |a |physiological |or |chemical |barrier |to |a |foreign |invader?

a. |Acidic |pH |in |nostril |membranes

b. |Cough |reflex

c. |High |pH |in |GI |Tract

d. |Pulmonary |macrophages

e. |None |of |the |above |- |CORRECT |ANSWER✔✔-c. |High |pH |in |GI |Tract



Which |of |the |following |are |true |regarding |phagocytosis?

a. |Opsonins |are |used |to |enhance |antigen |target

b. |PMN's |and |macrophages |are |involved |in |phagocytosis

c. |Defects |in |phagocytosis |causes |recurrent |infections

d. |All |of |the |above |- |CORRECT |ANSWER✔✔-d. |All |of |the |above



The |reticuloendothelial |system |(RES) |is |involved |in:

a. |Macrophage |phagocytosis

b. |Innate |Immunity

, c. |Elimination |of |aged |or |imperfect |cells.

d. |A |& |B

e. |A |& |C

f. |All |the |above |- |CORRECT |ANSWER✔✔-f. |All |the |above



Which |of |the |following |is |NOT |true |about |the |Nature |Killer |(NK) |cells?

a. |They |are |apart |of |the |innate |immune |system

b. |They |have |Killer-Excitatory |Receptors |(KER's), |which |bind |to |MHC |I |complexes

c. |They |kill |foreign |cells |by |lysis |or |apoptosis

d. |They |kill |virus |infected |and |tumor |cells

e. |None |of |the |above |- |CORRECT |ANSWER✔✔-b. |They |have |Killer-Excitatory |Receptors |(KER's),
|which |bind |to |MHC |I |complexes




Which |of |the |following |is |NOT |a |symptom |of |inflammation?

a. |Swelling

b. |Redness

c. |Pain

d. |Gain |of |Function

e. |Head |- |CORRECT |ANSWER✔✔-d. |Gain |of |Function



What |are |the |local |effects |of |kinins?

a. |Smooth |muscle |contraction

b. |Decreased |vascular |permeability |to |all |for |leukocyte |extravasion

c. |Inhibit |pain |and |itching

d. |None |of |the |above

e. |All |of |the |above |- |CORRECT |ANSWER✔✔-d. |None |of |the |above