Bissoy.com
Doctors Medicines MCQs Q&A

Which is the first antibody secreted by B cells following stimulation by an antigen?

Which is the first antibody secreted by B cells following stimulation by an antigen? Correct Answer IgM

B cells produce five different types of Immunoglobulins (antibodies) – IgG, IgM, IgA, IgD, IgE. The first antibody to be secreted by the B cells following stimulation by an antigen is IgM.

Related Questions

Which of the following statement(s) is/are CORRECT for antigen activated effector T cells?
P. CD4+ cells make contact with macrophages and stimulate their microbicidal activity.
Q. CD4+ cells make contact with B cells and stimulate them to differentiate into plasma cells.
R. CD8+ cells make contact with B cells and stimulate them to differentiate into plasma cells.
S. CD8+ cells make contact with virus infected cells and kill them.
In the question two statements are given, followed by two conclusions, I and II. Read all the conclusions and then decide which of the given conclusions logically follow/s from the given statements. Statements: All white blood cells are red blood cells. Some blood cells are red blood cells. Conclusions: I. All blood cells are red blood cells, is a possibility. II. Some red blood cells are not blood cells.
Which of the following statement is correct about antigen? Statement 1: The job of attacking target cells—either cells that have been infected by viruses or cells that have been distorted by cancer—is left to T cells or other immune cells. Statement 2: Antibodies ambush antigens circulating the bloodstream.
Which of the following statements about immune response are correct?
P. T cells are activated by antigen-presenting cells.
Q. Foreign peptides are not presented to helper T cells by class II MHC proteins.
R. Dendritic cells are referred to as professional antigenpresenting cells.
Which one of the combinations of the following statements is true about antibody structure?
P. Limited proteolysis of rabbit IgG with the enzyme pepsin generates two antigen-binding regions (Fab) and an Fc fragment.
Q. Limited proteolysis of rabbit IgG with the enzyme papain generates a single bivalent antigen-binding region F(ab')2 and peptide fragments.
R. The Fc fragment of IgG can self-associate and crystallize into a lattice.
S. The F(ab')2 fragment of IgG is composed of both light and heavy chains.
The culture fluids of 1000 to 5000 colonies of hybridoma are screened for monoclonal antibody by
P. Western blot analysis.
Q. Antigen capture analysis.
R. Northern blot analysis.
S. Antibody capture analysis.
Choose the correct pair from the following
Which one of the following option is correct? When a B cell encounters its triggering antigen, it gives rise to many large cells known as plasma cells.  Every plasma cell is essentially a factory for producing an antibody. 
Which of the following statements are NOT true? a) The number of cells in an elephant is more than number of cells in a monkey b) The size of cells in an elephant is larger than size of cells in a monkey c) Shape of cells in an elephant is different than shape of cells in a monkey
Consider the following statements regarding the Structure of cells: 1. Both Animal & Plant cells comprise amyloplast within the cell membrane. 2. Plant cells have plasmodesmata channels whilst animal cells do not. 3. Vacuoles in both plant cells & animal cells are always filled with solid substances. Which of the statement given above is/are not correct? 
Which of the following statements are correct regarding common differences between plant and animal cells?
1. Plant cells have cellulose cell wall, while animal cells lack it.
2. Plant cells lack plasma membrane, while animal cells have it.
3. Mature plant cell have a large vacuole, while animal cells have numerous small vacuoles.