Immune response/ system Flashcards
What is the difference between and antigen and an immunogen?
-Antigen is any substance that causes the body to make an immune response
-Immunogen is a structure capable of elicting an immune response in the body
Myeloperoxidase catalyses?
-The production of Hypochlorite from Hydrogen Peroxide
Which is the most efficient opsonin?
C3b
Which of the two main pathways of complement activation requires antibody binding to initiate the cascade, the Classical pathway, or the Alternative pathway?
Classical pathway
Which of the five classes of antibodies cannot activate complement via the classical pathway?-
IgG4, IgA, IgE and IgD
Name the granulocytes?
Neutrophils, basophils and eosinophils
Sneezing is an example of a) a mechanical barrier or b) a physical barrier?
A physical barrier
Which immune system has ‘memory’?
The acquired immune system
Which immune cells would you expect to be involved in a response to a parasitic infection?
Phagocytic cells
All types of lymphocyte are considered part of the acquired immune response, true or false?
- Only T and B lymphocytes are acquired, Nk lymphocytes are innate immune response
The neutrophil receptors involved in the detection of IgG opsonised microorganisms are called Fce (epsilon) receptors, true or false?
False -Fcy is used for IgG
Which gender has the stronger immune system, Male or Female?
Female as they produce low levels of inflammatory medicators, hormonal differences and genetic factors
Which arm of the immune system provides a rapid initial response to infection?
Innate system as it is the bodies 1st line of defense.
MHC stands for?
Major Histocompatibility complex
Name any two professional antigen presenting cells ?
Dendritic cells and phagocytes(Macrophages).
