Podcast
Questions and Answers
Where are NK progenitors and immature cells found?
Where are NK progenitors and immature cells found?
- Thymus
- Peripheral blood
- Spleen
- Bone marrow (correct)
What is the primary function of Natural Killer (NK) cells?
What is the primary function of Natural Killer (NK) cells?
- Produce cytokines
- Produce antibodies
- Regulate adaptive immunity
- Kill tumor cells and virus-infected cells (correct)
What percentage of circulating lymphocytes do NK cells typically constitute?
What percentage of circulating lymphocytes do NK cells typically constitute?
- 5–20% (correct)
- 25–40%
- 1–5%
- 45–60%
Which molecule is produced by lymphocytes and plasma cells, and is known as antibody in its secreted form?
Which molecule is produced by lymphocytes and plasma cells, and is known as antibody in its secreted form?
What is the lifespan of most NK cells after viral exposure?
What is the lifespan of most NK cells after viral exposure?
Which cell surface markers are used to differentiate developmental stages of B precursor cells?
Which cell surface markers are used to differentiate developmental stages of B precursor cells?
Which major gene loci are involved in Class II MHC molecules?
Which major gene loci are involved in Class II MHC molecules?
Which type of T cells are MHC Class I molecules primarily presenting antigens to?
Which type of T cells are MHC Class I molecules primarily presenting antigens to?
What is the role of Natural Killer (NK) cells in innate immune responses?
What is the role of Natural Killer (NK) cells in innate immune responses?
How do MHC Class II molecules present antigens to immune cells?
How do MHC Class II molecules present antigens to immune cells?
Which molecules do NK cells recognize on infected cells or stressed cells?
Which molecules do NK cells recognize on infected cells or stressed cells?
Which type of T cell co-receptor is involved in binding with antigens/MHC during T cell activation?
Which type of T cell co-receptor is involved in binding with antigens/MHC during T cell activation?
Which population of lymphoid cells were first identified as cytotoxic cells capable of killing tumor cells and virus-infected cells in the absence of immune sensitization?
Which population of lymphoid cells were first identified as cytotoxic cells capable of killing tumor cells and virus-infected cells in the absence of immune sensitization?
What is the characteristic CD marker expressed by NK cells?
What is the characteristic CD marker expressed by NK cells?
Which of the following disorders is associated with an increase in the T lymphocyte/CD4:CD8 ratio?
Which of the following disorders is associated with an increase in the T lymphocyte/CD4:CD8 ratio?
What is the primary T lymphocyte antigen receptor called?
What is the primary T lymphocyte antigen receptor called?
Which subset of T cells are defined by the expression of TCR with α and β chains?
Which subset of T cells are defined by the expression of TCR with α and β chains?
What characterizes mature NK cells in terms of CD56 and CD16 levels and cytolytic activity?
What characterizes mature NK cells in terms of CD56 and CD16 levels and cytolytic activity?
