Podcast
Questions and Answers
What is the primary responsibility of B cells in the immune system?
What is the primary responsibility of B cells in the immune system?
- Proliferating and forming lymphoblasts
- Secreting antibodies (correct)
- Eliminating antigens
- Differentiating into effector cells
What is the primary function of the plasma cells in the immune system?
What is the primary function of the plasma cells in the immune system?
- Secreting antibodies (correct)
- Proliferating and forming lymphoblasts
- Differentiating into memory cells
- Secreting cytokines
What type of cells are responsible for cytotoxic immunity?
What type of cells are responsible for cytotoxic immunity?
- T helper cells
- Plasma cells
- Cytotoxic T cells (correct)
- Suppressor T cells
What is the fate of naive lymphocytes upon interaction with antigens and cytokines?
What is the fate of naive lymphocytes upon interaction with antigens and cytokines?
What is the morphology of resting B and T lymphocytes?
What is the morphology of resting B and T lymphocytes?
What do effector cells of the T cell lineage include?
What do effector cells of the T cell lineage include?
What enzyme is responsible for inactivating the remaining kinin during the passage of plasma through the lung?
What enzyme is responsible for inactivating the remaining kinin during the passage of plasma through the lung?
What is the initial event that triggers the production of kinin?
What is the initial event that triggers the production of kinin?
What is the direct action of kallikrein on complement C5?
What is the direct action of kallikrein on complement C5?
Which of the following is not a function of kinin?
Which of the following is not a function of kinin?
What role does the enzyme kallikrein play in the production of kinin?
What role does the enzyme kallikrein play in the production of kinin?
Which T cell subpopulation is restricted to recognizing antigen bound to class II MHC molecules?
Which T cell subpopulation is restricted to recognizing antigen bound to class II MHC molecules?
Which of the following is NOT a function of T cells?
Which of the following is NOT a function of T cells?
What is the typical ratio of CD4 to CD8 cells in peripheral blood?
What is the typical ratio of CD4 to CD8 cells in peripheral blood?
Which of the following molecules is present on B cells and other APCs, and acts as a receptor for CD28?
Which of the following molecules is present on B cells and other APCs, and acts as a receptor for CD28?
Which of the following cytokines secreted by Th cells is NOT responsible for activating B cells, T cells, or other cells that participate in the immune response?
Which of the following cytokines secreted by Th cells is NOT responsible for activating B cells, T cells, or other cells that participate in the immune response?
Which of the following functions as a co-stimulatory molecule in conjunction with TCR engagement during activation of T cells?
Which of the following functions as a co-stimulatory molecule in conjunction with TCR engagement during activation of T cells?
What is the primary role of cytotoxic T lymphocytes (CTLs)?
What is the primary role of cytotoxic T lymphocytes (CTLs)?
How many chains does the T cell receptor (TCR) consist of and what are they?
How many chains does the T cell receptor (TCR) consist of and what are they?
What type of cell does a Th1 response mainly activate?
What type of cell does a Th1 response mainly activate?
Which cell is activated when it interacts with an antigen-class I MHC complex on the surface of an altered cell?
Which cell is activated when it interacts with an antigen-class I MHC complex on the surface of an altered cell?
Which chains of the TCR exhibit marked sequence variation?
Which chains of the TCR exhibit marked sequence variation?
What is the structural similarity between the TCR and immunoglobulin?
What is the structural similarity between the TCR and immunoglobulin?
What is the primary function of the positively charged amino acid residues in the TCR transmembrane domains?
What is the primary function of the positively charged amino acid residues in the TCR transmembrane domains?
How many hypervariable regions exist in the TCR variable domain?
How many hypervariable regions exist in the TCR variable domain?
Which kinin system component is a potent agent that increases vascular permeability?
Which kinin system component is a potent agent that increases vascular permeability?
Which TCR component forms a disulphide link with the other chain?
Which TCR component forms a disulphide link with the other chain?
Which statement best describes the structural homology between TCR C and V domains and immunoglobulin V and C domains?
Which statement best describes the structural homology between TCR C and V domains and immunoglobulin V and C domains?
What is the length of the transmembrane region in the TCR chains?
What is the length of the transmembrane region in the TCR chains?
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