T Cells Quiz
Preview:
What is phagocytosis?
A. microbes that are engulfed by phagocytes which destroys, removes, confines antigens or its by products
B. microbes that are engulfed by phagocytes which creates & invites antigens or its by products
What antigens are NOT in class II
A. HLA-DR
B. HLA-DP
C. HLA-DQ
D. HLA-DT
What do CD8+ cells do?
A. migrate to the site of infection and target cells infected with intracellular organisms
B. coordinate immune responses to specific threats
What antigen-specific T cell attaches to class II MHC?
A. CD4+ helper T lymphocytes
B. CD8+ cytotoxic T lymphocytes
What do CD4+ helper cells do?
A. regulate both innate and adaptive immunity
B. regulate ONLY innate immunity
C. regulate ONLY adaptive immunity
T or F. T cells require presentation of linear epitope sequences following Ag processing
A. TRUE
B. FALSE
Explain effector cells?
A. cell-mediated immunity or humoral response
B. rapid response to re-exposure
When in doubt choose…
A. A
B. B
C. C
D. D
What is the colour of the sun?
A. white
B. yellow
C. orange
D. big ball light in sky
What is antigen presentation?
A. antigen fragments, cell peptides or epitope sequences that are loaded onto class I and class II MHC
B. antigen fragments, cell peptides or epitope sequences that are loaded onto ONLY class I MHC
C. antigen fragments, cell peptides or epitope sequences that are loaded onto ONLY class II MHC
What antigens are NOT present in class I?
A. HLA-A
B. HLA-B
C. HLA-C
D. HLA-DR
What is the worst subject?
A. physiology
B. quant skills
C. genes
D. immune & infect
Define class I MHC
A. defines self on all nucleated cells, presentation of extracellular pathogens
B. defines self on some nucleated cells, presentation of extracellular pathogens
C. mostly restricted to pAPCs, presentation of extracellular pathogens
What are normal cells?
A. MHC proteins contain “self peptide”
B. MHC proteins contain “self poptide”
C. HHC protein contain “self peptide”
D. LCM protein contain “self peptide”
What antigen-specific T cell attaches to class I MHC?
A. CD8+ cytotoxic T lymphocytes
B. CD4+ helper T lymphocytes
What are NOT the first cells in an infectious encounter?
A. dendritic cells
B. T cells
C. macrophages
D. B cells
Define class II MHC
A. mostly restricted to pAPCs, presentation of extracellular pathogens
B. always restricted to pAPCs, presentation of extracellular pathogens
C. defines self on all nucleated cells, presentation of extracellular pathogens
What are infected cells?
A. MHC expresses some pathogen peptides
B. LCM expresses some pathogen peptides
C. MHC expresses alot of pathogen peptides
D. MHC expresses all pathgoen peptides
Explain memory cells?
A. for rapid response to re-exposure
B. cell-mediated immunity or humoral response
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