Deck 4 Flashcards
What is the characteristic that best defines the acquired immune response?
a. It involves leukocytes.
b. It is not present at birth.
c. It involves cell proliferation.
d. The cells involved recognize pathogens
e. It exhibits immunological memory
It exhibits immunological memory
Pattern recognition receptors (PRR) include which of the following?
a. Unmethylated CpG sequences
b. Pathogen-associated molecular patterns (PAMPs)
c. Lipoteichoic acid
d. Toll-like receptors
e. Lipopolysacchride (LPS)
Toll-like receptors
A fragment antigen binding (Fab) fragment:
a. Binds antigen
b. Is produced by pepsin treatment
c. Is produced by separation of heavy and light chains
d. Has no interchain disulfide bonds
e. Lacks light chains
Binds antigen
The basic immunoglobulin (Ig) unit is composed of:
a. Two different heavy and two identical light chains
b. Two identical heavy and two identical light chains
c. Non-covalently bound polypeptide chains
d. Two different heavy and two different light chains
e. Two identical heavy and two different light chains
Two identical heavy and two identical light chains
An isolated antigenic determinant that has the ability to react specifically with antibodies but cannot induce their formation is called:
a. allergen.
b. antigen.
c. hapten.
d. superantigen.
hapten
What is the characteristic that best defines the acquired immune response?
a. It involves leukocytes.
b. It is not present at birth.
c. It involves cell proliferation.
d. The cells involved recognize pathogens
e. It exhibits immunological memory.
It exhibits immunological memory
Pattern recognition receptors (PRR) include which of the following?
a. Unmethylated CpG sequences
b. Pathogen-associated molecular patterns (PAMPs)
c. Lipoteichoic acid
d. Toll-like receptors
e. Lipopolysacchride (LPS)
Toll-like receptors
A fragment antigen binding (Fab) fragment:
a. Binds antigen
b. Is produced by pepsin treatment
c. Is produced by separation of heavy and light chains
d. Has no interchain disulphide bonds
e. Lacks light chains
Binds antigen
The basic immunoglobulin (Ig) unit is composed of
Two identical heavy and two identical light chains
An isolated antigenic determinant that has the ability to react specifically with antibodies but cannot induce their formation is called
hapten
(An isolated antigenic determinant that has the ability to specifically react with antibodies but cannot induce their production is called a hapten. Superantigens are a class of antigens that lead to overactivation of the immune system. In particular, it causes non-specific T-cell activation, leading to polyclonal T-cell activation and massive cytokine release. Allergen is a substance capable of causing an abnormal immune response called an allergy. Antigen is the name for all molecules that stimulate the immune response.)
