NEETBiologyHuman Health and DiseasesMCQ+4 / −1
Which one of the following statements is
correct with respect to immunity?
- ARejection of a kidney graft is the function of B-lymphocytes.
- BPreformed antibodies need to be injected to treat the bite by a viper snake.
- CThe antibodies against small pox pathogen are produced by T – lymphocytes
- DAntibodies are protein molecules, each of which has four light chains.
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Correct answer: B
Preformed antibodies need to be injected
to treat the bite by a viper snake. It is also
a type of immunization which is called as
passive immunization.
Antibodies, produced by B-cells, are typically
made of basic structural units—each with two
large heavy chains and two small light chains.
B cells differentiate into plasma cells that
secrete antibodies. Antibodies are proteins
that bind to specific antigens and mark them
for destruction by, for example, marking
them more recognizable to phagocytic cells.
Rejection of a kidney graft is not a function
of B lymphocyte.
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