18 Questions
Which type of immunity are Natural Killer cells important in?
Innate immunity
How do Natural Killer cells distinguish between healthy and infected cells?
By identifying cell surface proteins induced by stress, malignant transformation, or microbial infections
Which of the following is true about B cells?
They produce antibodies
Where do B cells mature?
In the bone marrow
What is a function of B cells?
They present antigens to T cells
Which cells originate from stem cells in the bone marrow but mature in the thymus?
Helper T cells
Which cells express CD4 and recognize MHC II?
Helper T cells
Which cells are the primary target of HIV?
Helper T cells
Which cells produce large amounts of antibody specific to a particular antigen?
B cells
How are plasma cells characterized?
Rough endoplasmic reticulum (RER) and eccentric nucleus
Where are plasma cells typically found?
Bone marrow
During which stage of fetal development does erythropoiesis occur in the bone marrow?
18 weeks to adulthood
Which organ is responsible for synthesizing blood cells during fetal development?
Liver
At what stage of fetal development does erythropoiesis occur in the spleen?
10 to 28 weeks
Which type of hemoglobin has a higher affinity for oxygen due to its weaker binding of 2,3-BPG?
Fetal hemoglobin
During the transition from fetal to adult hemoglobin, there is a switch from which type of chains to which type of chains?
γ chains to β chains
Which of the following is a form of adult hemoglobin present in small amounts?
HbA2
Which type of hemoglobin is composed of α2β2 chains?
HbA1
Test your knowledge on Natural Killer Cells and their role in innate immunity. Learn about their unique characteristics, cytoplasmic lytic granules, and how they differentiate between healthy and infected cells.
Make Your Own Quizzes and Flashcards
Convert your notes into interactive study material.
Get started for free
