QuestionSBA
QuestionChoice
IgE is associated with Type 1 Hypersensitivity reactions. It is synthesized by plasma cells and provides immunity to parasites such as helminths. It is not the first immunoglobulin to be secreted in infection, this is IgM.
10025008
d
IgE
QuestionChoice
The role of IgD is less clear than that of the other antibodies. It is possible that it enhances the response of the other classes of antibodies, or helps to block viral replication. It is not the first immunoglobulin to be secreted in infection, this is IgM.
10025009
e
IgD
QuestionChoice
IgA is the most predominant immunoglobulin found in breast milk. It can also be found in secretions of the digestive, respiratory and urogenital systems. The other main role of IgA is to provided protection on cell mucus membranes. It is not the first immunoglobulin to be secreted in infection, this is IgM.
10025007
c
IgA
QuestionChoice
This immunoglobin is the only type that is able to pass into the foetal circulation. IgG is also involved in phagocytosis of bacteria and viruses, and is the most abundant type of immunoglobulin found in the blood serum. However, the first immunoglobulin to be secreted in infection is IgM.
10025006
b
IgG
QuestionChoice
The defining feature of IgM is that it is the first immunoglobulin to be secreted in response to infection. It is secreted as a pentamer.
10025005
a
IgM
Concept
Chapter
2693
3854
Antibodies
Topic
158
Immunology
17399
Which is the first immunoglobulin to be secreted in repsonse to infection?
a