Kahoot Questions Flashcards
Which infectious disease has been eradicated by vaccination?
a) Smallpox
b) Measles
c) Poliomyelitis
d) Influenza
a) Smallpox
Primary immunodeficiencies,
a) are caused by genetic defects.
b) can be caused by an infectious agent
c) are always fatal.
d) some of them can be cured by bone marrow transplantation
a) are caused by genetic defects.
d) some of them can be cured by bone marrow transplantation
Autoimmune Diseases,
a) are characterized by an immune response toward an environmental antigen.
b) are characterized by an immune response toward self-antigen.
c) can target virtually any part of our body.
b) are characterized by an immune response toward self-antigen.
c) can target virtually any part of our body.
Therapeutic molecules called “biologicals” are,
a) engineered cells.
b) protein based.
c) small chemicals
d) cheap to produce.
b) protein based.
Which of these definitions best describes the term “epitope” ?
a) The portion of an antigen recognized by an immune receptor
b) A linear peptide recognized by an antibody
c) The three-dimensional structure recognized by an antibody
a) The portion of an antigen recognized by an immune receptor
What recognizes the T Cell Receptor (TCR) as an antigen?
a) Native protein in complex with MHC
b) Proteins in native form
c) Peptides derived from processed proteins, in complex with MHC
d) The MHC complex alone
c) Peptides derived from processed proteins, in complex with MHC
d) The MHC complex alone
The clonal selection process occurs when the antigen is recognized by:
a) Neutrophils
b) Mast cells
c) T lymphocytes
d) Eosinophils
c) T lymphocytes
Which of the following statements about plasma cells is true:
a) Plasma cells arise from T lymphocytes
b) Plasma cells secrete large amounts of antibodies
c) Plasma cells differentiate into B lymphocytes
d) Plasma cells secrete large amounts of IFNy
b) Plasma cells secrete large amounts of antibodies
Following a first exposure to the antigen, it is possible to detect specific antibodies in the
plasma after;
a) 5-7 days
b) 1 hour
c) Only after second exposure to the antigen
d) 3-5 weeks
a) 5-7 days
A single plasma cell produces:
a) Many different types of antibodies
b) The recognized antigen
c) Antibodies of a single specificity
d) Antibodies of two specificities
c) Antibodies of a single specificity
Immunological memory can be transferred experimentally by transferring:
a) Antibodies
b) Lymphocytes
c) Complement
d) Plasma
b) Lymphocytes
Naive lymphocytes recirculate:
a) from the blood circulation to the lymph nodes
b) from the lymphatic circulation to the site of inflammation
c) from the blood circulation to the spleen
d) from the blood circulation to the site of inflammation
a) from the blood circulation to the lymph nodes
c) from the blood circulation to the spleen
Plasma cells typically home:
a) in the brain
b) in mucosal tissues
c) in the bone marrow
d) in peripheral tissues
b) in mucosal tissues
c) in the bone marrow
Which are the fastest cells to reach the site of inflammation?:
a) monocytes
b) neutrophils
c) naive lymphocytes
d) dendritic cells
b) neutrophils
Migration through the vascular endothelium relies on:
a) chemokine signaling
b) adhesion molecules
c) vasoconstriction
d) increase speed of the blood flow
a) chemokine signaling
b) adhesion molecules
Naive T cell entry in the lymph node relies on:
a) CCR7-CCL19/21
b) S1PR1 upregulation
c) CXCR5 expression
d) CD62L-PNAd interactions
a) CCR7-CCL19/21
d) CD62L-PNAd interactions
The concentration of S1P is higher:
a) in the lymph node parenchyma
b) upon inflammation
c) in the blood and lymph
d) upon antigen encounter
c) in the blood and lymph
How many polypeptide chains make up an IgG?
a) Four, 2 heavy and 2 light
b) Two, an alpha chain and a beta chain
c) Two, a heavy chain and a light chain
d) twenty
a) Four, 2 heavy and 2 light
he variable region of antibodies;
a) is made up of VL and VH
b) is part of the FC region
c) contains the binding site for FCRN
d) is involved in antigen recognition
a) is made up of VL and VH
d) is involved in antigen recognition
Which of these immunoglobulin isotypes are multimeric?
a) IgG (monomeric)
b) IgA (dimeric)
c) IgM (pentameric)
d) IgD (monomeric)
b) IgA (dimeric)
c) IgM (pentameric)
Why are murine antibodies not suitable for human administration?
a) They will not be cleared from the circulation
b) They can be immunogenic
c) They will not mediate effector functions different from neutralisation (they can only facilitate
blocking)
d) They will not recognise the antigen
b) They can be immunogenic
c) They will not mediate effector functions different from neutralisation (they can only facilitate
blocking)
Which strategies can be used to generate human antibodies?
a) Immunization of transgenic animals carrying human Ig loci
b) BCR sequencing of human B cells
c) Immunization of experimental animals like rabbits
d) Immunization of experimental animals like mice
a) Immunization of transgenic animals carrying human Ig loci
b) BCR sequencing of human B cells
Antimicrobial peptides include:
a. Defensins
b. Cathelicidins
c. Lysozyme
d. Mucins
a. Defensins
b. Cathelicidins
Which of these TOLL-like receptors is expressed on the plasma membrane:
a. TLR3
b. TLR4
c. TLR8
d. TLR9
b. TLR4
NOD-Like Receptors are found:
a. in the cytoplasm
b. in the nucleus
c. in the endosomes
d. at the plasma membrane
a. in the cytoplasm
What is the molecular consequence of NOD1 and NOD2 activation?
a. Pyroptosis
b. Apoptosis
c. NFkB activation
d. Production of active form of IL-1β
c. NFkB activation
Which of these stimuli can activate the inflammasome?
a. Flagellin
b. Anthrax toxin
c. Reduction of K+ concentration
d. Uric acid crystals
a. Flagellin
b. Anthrax toxin
c. Reduction of K+ concentration
d. Uric acid crystals
Which complement subunits are potent mediators of inflammation?:
a) C3a
b) C3b
c) C5a
d) C4a
a) C3a
c) C5a
In physiological condition, what percentage of C3 undergoes proteolytic cleavage?:
a) 1%
b) 10%
c) 50%
d) C3 never undergoes cleavage
a) 1%
C1 is activated upon interaction with:
a) IgM
b) IgA
c) Pentraxins
d) MBL
a) IgM
c) Pentraxins
C3 deficiency is associated to:
a) Increased susceptibility to infection
b) Attacks of severe swelling
c) Deposition of immune complexes
d) Lysis of red blood cells.
a) Increased susceptibility to infection
c) Deposition of immune complexes
Which of these complement regulatory factors inhibit MAC assembly?
a) DAF
b) CD59
c) C1INH
d) Factor I
b) CD59
The majority of T cells express TCR composed by:
a) one alpha chain and one beta chain
b) one gamma chain and one delta chain
c) two alpha chains and two beta chains
d) one heavy chain and one light chain
a) one alpha chain and one beta chain
The variable part of the BCR heavy chain:
a) is recombined in the thymus
b) is encoded by a V, a D and a J fragment
c) is recombined in the spleen
d) contains CDR1, CDR2 and CDR3
b) is encoded by a V, a D and a J fragment
d) contains CDR1, CDR2 and CDR3
VDJ recombination
a) requires Rag1 and Rag2 expression
b) requires innate immune stimuli to occur
c) can lead to frameshift mutations in the recombined genes
d) occurs during B and T cell maturation
a) requires Rag1 and Rag2 expression
c) can lead to frameshift mutations in the recombined genes
d) occurs during B and T cell maturation
The pre-TCR complex
a) can recognize self antigens
b) interacts with MHC-I and MHC-II
c) is composed by a recombined beta chain and an invariant pre-alpha
d) promotes T cell survival
c) is composed by a recombined beta chain and an invariant pre-alpha
d) promotes T cell survival
The germline organization of the Ig and TCR loci
a) is present only in lymphocytes
b) is present in all cells
c) does not encode for a functional transcript
d) encodes for functional antigen receptors
b) is present in all cells
c) does not encode for a functional transcript
What contributes to clonal diversity in antigen receptor repertoire?
a) allelic diversity
b) combinatorial diversity
c) junctional diversity
d) mutational diversity
b) combinatorial diversity
c) junctional diversity
During T cell maturation, positive selection
a) promotes the survival of thymocytes that recognize self MHC complexes
b) allows the survival only of thymocytes that recognize self antigens
c) ensures the removal of thymocytes that recognize self antigens
d) occurs in the thymus
a) promotes the survival of thymocytes that recognize self MHC complexes
d) occurs in the thymus
During T cell maturation, negative selection
a) enhance the survival of clones with a functional TCR
b) allows the deletion of self reactive clones
c) require the presentation of antigen by thymic epithelial cells
d) benefit from AIRE expression
b) allows the deletion of self reactive clones
c) require the presentation of antigen by thymic epithelial cells
d) benefit from AIRE expression
Which of these pairs are correctly associated?
a) positive selection - central tolerance
b) positive selection - MHC restriction
c) negative selection - central tolerance
d) negative selection - MHC restriction
b) positive selection - MHC restriction
c) negative selection - central tolerance
Chronic mucocutaneous candidiasis in APECED is associated to
a) presence of autoantibodies targeting peripheral tissues
b) presence of autoantibodies targeting cytokines as IL-17
c) presence of self reactive CD8+ T cells
d) presence of self reactive CD4+ T cells
b) presence of autoantibodies targeting cytokines as IL-17