12 Questions
What is the difference between an immunogen and an antigen?
An immunogen induces an immune response while an antigen is recognized by the immune system.
What property must an antigen possess to be immunogenic?
Foreignness and genetic composition
Why would a human body likely reject a pig's heart transplant?
Due to the genetic differences between pigs and humans
What role does the epitope play in the immune response?
It is recognized by B cells or T cells in the immune system
Why may one person manifest a hypersensitivity reaction to a substance that provokes no reaction in another person?
Because of differences in genetic composition
What type of substance is a hapten, and how does it induce an immune response?
A low molecular weight substance that can only induce a response if bound to an immunogenic molecule
What type of organic substances are generally antigenic?
Proteins and nucleic acids
Why are proteins considered the most immunogenic among different chemical groupings?
Due to their large size and complex structures
What is the molecular weight threshold for antigens to be considered weakly or non-immunogenic?
Below 10,000 Dalton's
Why might a small amount of protein antigen induce an immune response compared to a larger amount of a polysaccharide antigen?
Proteins have higher immunogenicity due to their complex structure
Where do T cells mature in the body?
Thymus
Which cellular components play a crucial role in adaptive immunity?
B lymphocytes and T lymphocytes
Test your knowledge of key terms in immunology including immunogen, antigen, epitope, and hapten. Learn the definitions and distinctions between these important concepts related to the immune system.
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