Immunology BOC Questions 1-86

Front

What is the significance of a second antibody titer being at least 4x the first in serological tests?

Back

It indicates a significant immune response to the viral infection, confirming a diagnosis.

Front

What type of cells are responsible for producing antibodies?

Back

B cells are responsible for producing antibodies.

Front

Which cell type is a key mediator of immune complex tissue injury?

Back

Neutrophils are important cellular mediators of immune complex tissue injury.

Front

What are haptens?

Back

Haptens are substances that are antigenic only when coupled to a protein carrier.

Front

What is the acute phase reactant that can rise 100x in response to inflammation?

Back

C-reactive protein is the acute phase reactant with the fastest response time.

Front

Define antibodies.

Back

Antibodies are proteins produced by B cells that specifically bind to antigens to neutralize or mark them for destruction.

Front

What role do neutrophils play in the immune system?

Back

Neutrophils are white blood cells that respond quickly to infection and are key players in the inflammatory response.

Front

Explain the term 'opsonins'.

Back

Opsonins are molecules that enhance the phagocytosis of antigens by marking them for destruction.

Front

What is the function of mast cells in the immune response?

Back

Mast cells release histamine and other chemicals during allergic reactions and play a role in inflammation.

Front

What are the characteristics of an antigen?

Back

An antigen is a substance that induces an immune response, typically a foreign protein or polysaccharide.