Bio 256 Exam 4 Questions with Correct
Answers
The first line of defense of the innate defense system is - Answer-intact skin and mucus
membranes
Which cell resides in tissues to prevent infections? - Answer-Macrophages
The process whereby neutrophils and other white blood cells are attracted to an
inflammatory site is called - Answer-chemotaxis
Pyrogens, secreted by activated phagocytes, cause - Answer-fever
Which is a beneficial result of fever? - Answer-
Which is the least specific type of immunity? - Answer-innate
Cancer cells and virus-infected body cells can be killed before activation of the
immune system by - Answer-natural killer cells.
Which of the following is NOT a type of T cell? - Answer-antigenic
In clonal selection of B cells, which substance is responsible for determining which cells
will eventually become cloned? - Answer-antigen
The only immunoglobulin to exist as a pentamer (containing 5 subunits) is - Answer-IgM
Antibody functions include all of the following EXCEPT - Answer-cross-linking cell-
bound antigens on red blood cells when blood types are properly matched
A vaccination will stimulate the production of - Answer-immune memory and antibodies.
When an antivenom is injected into a snake bite victim, they will develop - Answer-an
elevated antibody titer, but no immune memory.
What molecules on your macrophages are used to display antigen fragments for
detection by your T-lymphocytes? - Answer-MHC proteins
Select the correct statement about immunodeficiency. - Answer-The causative agent in
acquired immune deficiency syndrome (AIDS) is a virus that recognizes CD4 proteins.
The single most effective way to prevent the spread of disease is - Answer-
handwashing.
Answers
The first line of defense of the innate defense system is - Answer-intact skin and mucus
membranes
Which cell resides in tissues to prevent infections? - Answer-Macrophages
The process whereby neutrophils and other white blood cells are attracted to an
inflammatory site is called - Answer-chemotaxis
Pyrogens, secreted by activated phagocytes, cause - Answer-fever
Which is a beneficial result of fever? - Answer-
Which is the least specific type of immunity? - Answer-innate
Cancer cells and virus-infected body cells can be killed before activation of the
immune system by - Answer-natural killer cells.
Which of the following is NOT a type of T cell? - Answer-antigenic
In clonal selection of B cells, which substance is responsible for determining which cells
will eventually become cloned? - Answer-antigen
The only immunoglobulin to exist as a pentamer (containing 5 subunits) is - Answer-IgM
Antibody functions include all of the following EXCEPT - Answer-cross-linking cell-
bound antigens on red blood cells when blood types are properly matched
A vaccination will stimulate the production of - Answer-immune memory and antibodies.
When an antivenom is injected into a snake bite victim, they will develop - Answer-an
elevated antibody titer, but no immune memory.
What molecules on your macrophages are used to display antigen fragments for
detection by your T-lymphocytes? - Answer-MHC proteins
Select the correct statement about immunodeficiency. - Answer-The causative agent in
acquired immune deficiency syndrome (AIDS) is a virus that recognizes CD4 proteins.
The single most effective way to prevent the spread of disease is - Answer-
handwashing.
