PNB 2265 EXAM III PRACTICE
QUESTIONS
Which-is-the-correct-sequence-of-events-for-activation-of-specific-Helper-T-cell?---ans---1)-
Presentation-of-Ag-bound-to-class-II-MHC-on-an-APC
2)-Costimulation-=-binding-of-matching-nonantigenic-proteins-in-membrane-of-APC-&-
helper-T
3)-APC-secretes-cytokines-that-act-on-helper-T-(IL-1)
What-is-the-correct-sequence-of-events-for-activation-of-a-specific-cytotoxic-T-cell-during-a-
primary-immune-response?---ans---1)-Tc-cells-recognize-Ag-bound-to-MHC-I
Presented-by-any-nucleated-cell
2)-APC-presents-MHC-II-→-activates-Helper-T-cells-recognize-Ag-bound-to-MHC-II-
proteins
Which-is-an-example-of-a-primary-lymph-organ?-
a.-bone-marrow
b.-lymph-node
c.-lymphatic-vessel
d.-all-of-the-the-above---ans---a
Changes-in-H+-concentration-would-most-likely-interfere-with-the-absorption-of:-
A.-amino-acids-
B.-dipeptides---ans---dipeptide
HIV-can-cause-AIDS-which-results-in-destruction-of-helper-T-cells.-If-this-occurs-then-
______-immunity-is-destroyed.-
a.-cell-mediated-immunity-
b.-antibody-mediated-immunity-
c.-both-
d.-neither---ans---c
The-constant-region-of-an-antibody
a.-Is-on-the-stem-region
b.-Is-involved-in-effector-mechanisms-to-eliminate-pathogens
c.-Is-the-same-on-every-antibody
d.-All-of-the-above---ans---d
QUESTIONS
Which-is-the-correct-sequence-of-events-for-activation-of-specific-Helper-T-cell?---ans---1)-
Presentation-of-Ag-bound-to-class-II-MHC-on-an-APC
2)-Costimulation-=-binding-of-matching-nonantigenic-proteins-in-membrane-of-APC-&-
helper-T
3)-APC-secretes-cytokines-that-act-on-helper-T-(IL-1)
What-is-the-correct-sequence-of-events-for-activation-of-a-specific-cytotoxic-T-cell-during-a-
primary-immune-response?---ans---1)-Tc-cells-recognize-Ag-bound-to-MHC-I
Presented-by-any-nucleated-cell
2)-APC-presents-MHC-II-→-activates-Helper-T-cells-recognize-Ag-bound-to-MHC-II-
proteins
Which-is-an-example-of-a-primary-lymph-organ?-
a.-bone-marrow
b.-lymph-node
c.-lymphatic-vessel
d.-all-of-the-the-above---ans---a
Changes-in-H+-concentration-would-most-likely-interfere-with-the-absorption-of:-
A.-amino-acids-
B.-dipeptides---ans---dipeptide
HIV-can-cause-AIDS-which-results-in-destruction-of-helper-T-cells.-If-this-occurs-then-
______-immunity-is-destroyed.-
a.-cell-mediated-immunity-
b.-antibody-mediated-immunity-
c.-both-
d.-neither---ans---c
The-constant-region-of-an-antibody
a.-Is-on-the-stem-region
b.-Is-involved-in-effector-mechanisms-to-eliminate-pathogens
c.-Is-the-same-on-every-antibody
d.-All-of-the-above---ans---d
