PCB 4233 Immunology Final Exam 2024.2025
Latest Fall. Spring Term 100% Complete
Question And Answer
Which of the following is not associated with allergy development early in life?
a) decreased animal exposure
b) decreased siblingship
c) bottle feeding
d) teething
Answer: d) teething
What is the primary immune response which is responsible for dealing with
helminths?
a) Tc cell-mediated
b) TH2 cell-mediated
,c) Plasma cell-mediated
d) Humoral (antibody)
e) Complement
Answer: b) TH2 cell-mediated
Infection by which of the following worm species is most associated with the
developed world?
A. - Necator americanus (Hookworm)
B. - Strongyloides stercoralis
C. - Trichuris trichiura (Whipworm)
D. - Enterobius vermicularis (Pinworm)
Answer - D
,Which of the following statements correctly explains the immune response to
Schistosomes?
A. TH1 responses predominate in the early stage of infection while TH2 responses
predominate in the chronic stage of infection
B. TH1 responses predominate in the chronic stage of infection while TH2 responses
predominate in the early stage of infection
C. TH1 responses lead to increases in pathology with the worms
D. Granulomas increase upon TH1 and TH2 responses
E. None of the above statements correctly describe this immune response
Correct answer is (A
Exiting the thymus seems to depend on a cascade involving the transcription factor,
Foxo1, which does NOT lead to production of
A. SIPR, which allows thymic egress
B. IL-7R, which promotes survival of the cells
C. CCR7, a chemokine receptor that directs cells to lymph nodes
D. CD3, which allows cell surface T-cell receptor expression
E. It leads to all of the above.
, Correct answer: D. CD3, which allows cell surface T-cell receptor expression.
The extrinsic pathway:
a. does NOT depend on the activation of protease activity
b. depends on failure of mitochondrial integrity
c. is initiated by death receptors
d. all of the above
Correct answer is C.
The extrinsic pathway does get initiated by death receptors and DOES depend on the
activation of protease activity. But, the extrinsic pathway does not depend on failure of
mitochondrial integrity.
The Extrinsic Pathway does Not:
A) Depends on Failure of mitochondrial integrity
B) Get initiated by death receptors
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