Immunology MCQ
Limiting factors can affect _________________ (select all that apply):
Answer
Correct Answer:
All of these
Note: This Question is unanswered, help us to find answer for this one
Life on the earth depends on interaction of gravity, the cycling of matter, and the ____.
Answer
Correct Answer:
One-way flow of energy
Note: This Question is unanswered, help us to find answer for this one
Lettuce seeds exposed to far-red light, blue light, and then red light ______.
Answer
Correct Answer:
R →FR→R→FR→R
Note: This Question is unanswered, help us to find answer for this one
L-dopa is used to treat _____
Answer
Correct Answer:
Parkinson's disease
Note: This Question is unanswered, help us to find answer for this one
The person credited with the axiom, every cell from a cell is __________.
Answer
Correct Answer:
Rudolf Virchow
Note: This Question is unanswered, help us to find answer for this one
The correct composition of the membrane attack complex is given by_______________
Note: This Question is unanswered, help us to find answer for this one
Innate immunity and adaptive immunity are both _____.
Answer
Correct Answer:
Characteristics of all vertebrate animals
Note: This Question is unanswered, help us to find answer for this one
A circulating white blood cell that is a factor in inflammation is a(n) ________ .
Note: This Question is unanswered, help us to find answer for this one
Beta cell destruction that causes type 1 diabetes mellitus is a(n) __________.
Answer
Correct Answer:
Type IV (delayed) hypersensitivity
Note: This Question is unanswered, help us to find answer for this one
An antigen must be at least ________ amino acids long to be effective in a vaccine.
Note: This Question is unanswered, help us to find answer for this one
All of the following processes can be activated by complement except __________.
Answer
Correct Answer:
Antibody production
Note: This Question is unanswered, help us to find answer for this one
Activation of c3 results in __________.
Answer
Correct Answer:
All of the listed choices
Note: This Question is unanswered, help us to find answer for this one
Tc cells express a(n) ________ protein co-receptor.
Note: This Question is unanswered, help us to find answer for this one
Natural killer (nk) cells __________.
Answer
Correct Answer:
Can kill cancer cells before the immune system is activated.
Note: This Question is unanswered, help us to find answer for this one
Four cardinal signs of ____________ are recognized.
Answer
Correct Answer:
Inflammation
Note: This Question is unanswered, help us to find answer for this one
Tissue rejection after an organ transplant is least likely due to the action of _________.
Answer
Correct Answer:
Regulatory T cells
Note: This Question is unanswered, help us to find answer for this one
The serum used for emergency treatment of snakebites stimulates __________ immunity.
Answer
Correct Answer:
Artificial passive
Note: This Question is unanswered, help us to find answer for this one
T-independent humoral immunity may be stunted in children because __________.
Answer
Correct Answer:
The repertoire of B cells in children is not fully developed
Note: This Question is unanswered, help us to find answer for this one
A change in the immune system that rarely accompanies aging is __________.
Answer
Correct Answer:
Improved immunological surveillance
Note: This Question is unanswered, help us to find answer for this one
One group of proteolytic enzymes secreted by natural killer (nk) cells is __________.
Answer
Correct Answer:
Granzymes
Note: This Question is unanswered, help us to find answer for this one
Bronchoconstriction, dyspnea, and widespread vasodilation are all characteristics of __________.
Answer
Correct Answer:
Anaphylactic shock
Note: This Question is unanswered, help us to find answer for this one
A secondary response to an infectious agent has a _______ latent phase than a primary response has.
Note: This Question is unanswered, help us to find answer for this one
The "immuno" part of elisa refers to a critical component of the assay, the _____.
Answer
Correct Answer:
Antibodies
Note: This Question is unanswered, help us to find answer for this one
During the inflammatory response ______ degranulate and release ________.
Answer
Correct Answer:
Mast cells; histamine
Note: This Question is unanswered, help us to find answer for this one
The cell that dominates the deep cortical region of a lymph node is the ________ cell.
Note: This Question is unanswered, help us to find answer for this one
Antibiotics administered in human medicine work against bacterial infections by __________.
Answer
Correct Answer:
Interfering with an aspect of bacterial metabolism or structure that differs from that of eukaryotic cells
Note: This Question is unanswered, help us to find answer for this one
Treatment of an abscess often requires that it be surgically drained because ______.
Answer
Correct Answer:
The wall of the abscess prevents neutrophils from entering the pus and attacking the pathogens
Note: This Question is unanswered, help us to find answer for this one
The redness and heat of an inflamed area are due to a local hyperemia caused by ________.
Answer
Correct Answer:
Vasodilation
Note: This Question is unanswered, help us to find answer for this one
Phagocyte mobilization involves ________.
Answer
Correct Answer:
Cytotoxic
Note: This Question is unanswered, help us to find answer for this one
Antigen presentation is __________.
Answer
Correct Answer:
Presented by specialized peptide display molecules on host cell.
Note: This Question is unanswered, help us to find answer for this one
An advantage to adaptive immunity is ________.
Answer
Correct Answer:
Its memory cells that provide quicker, larger and more efficient immune response upon second exposure to an antigen
Note: This Question is unanswered, help us to find answer for this one
An advantage of innate immunity is ________.
Answer
Correct Answer:
Its barriers that prevent pathogens from entering into the body.
Note: This Question is unanswered, help us to find answer for this one
Allergic reactions to penicillins are considered a(n) _____ hypersensitivity.
Answer
Correct Answer:
Immediate
Note: This Question is unanswered, help us to find answer for this one
Allergens differ from antigens because ________.
Answer
Correct Answer:
Allergens produce an abnormally large immune response to what is an otherwise harmless particle
Note: This Question is unanswered, help us to find answer for this one
A vaccine is effective because ________.
Answer
Correct Answer:
The secondary response of the adaptive immunity is faster and more efficient than the primary response.
Note: This Question is unanswered, help us to find answer for this one
T-independent humoral immunity __________.
Answer
Correct Answer:
The repertoire of B cells in children is not fully developed
Note: This Question is unanswered, help us to find answer for this one
T cells achieve self tolerance in the __________
Note: This Question is unanswered, help us to find answer for this one
Il 2 is involved in __________ tc cells
Answer
Correct Answer:
Self-stimulation of clonal
Note: This Question is unanswered, help us to find answer for this one
T cells _____ pathogens.
Answer
Correct Answer:
Defense against
Note: This Question is unanswered, help us to find answer for this one
Dividing lymphocytes can be found in the ________ of the lymphatic nodule.
Answer
Correct Answer:
Germinal center
Note: This Question is unanswered, help us to find answer for this one
The immune system normally discriminates between __________ antigens.
Answer
Correct Answer:
Self and nonself
Note: This Question is unanswered, help us to find answer for this one
Type a blood can safely donate rbcs to _____________ and can receive rbcs of type ___________.
Note: This Question is unanswered, help us to find answer for this one
A fruit fly, internally infected by a potentially pathogenic fungus, is protected by its _____.
Answer
Correct Answer:
Antimicrobial peptides
Note: This Question is unanswered, help us to find answer for this one
The lymphocytes that enter tissues and directly attack antigens are __________ cells.
Answer
Correct Answer:
Cytotoxic T
Note: This Question is unanswered, help us to find answer for this one
The birth of t cells takes place in the ____________ bone marrow.
Note: This Question is unanswered, help us to find answer for this one
Most antibodies and ____ _____ respond to the site of ______ _______ on a foreign molecule.
Answer
Correct Answer:
T cells, highest antigenicity
Note: This Question is unanswered, help us to find answer for this one
Innate immunity _____.
Answer
Correct Answer:
Is activated immediately upon infection
Note: This Question is unanswered, help us to find answer for this one
Helper t cells are part of _____.
Answer
Correct Answer:
Helper T cells are part of cell-mediated immune responses. Cell-mediated immunity depends on the activation of T lymphocytes.
Note: This Question is unanswered, help us to find answer for this one
Vertebrate immune cells, which are phagocytic, include ________.
Answer
Correct Answer:
All of the above
Note: This Question is unanswered, help us to find answer for this one
Class i mhc molecules __________.
Answer
Correct Answer:
Activate cytotoxic T cells
Note: This Question is unanswered, help us to find answer for this one
Class i major histocompatibility complex molecules are found on ____________ cells.
Answer
Correct Answer:
All nucleated
Note: This Question is unanswered, help us to find answer for this one
Yearly vaccination of humans for influenza viruses is necessary because _____.
Answer
Correct Answer:
Rapid mutation in flu viruses alters the surface proteins in infected host cells
Note: This Question is unanswered, help us to find answer for this one
Without the positive selection process in lymphocyte maturation ________.
Answer
Correct Answer:
T-cells would not be able to properly bind to APC's and therefore not be activated by them
Note: This Question is unanswered, help us to find answer for this one
The process of diapedesis is important because __________.
Answer
Correct Answer:
It allows white blood cells to leave the vessel system and attack pathogens in the tissues
Note: This Question is unanswered, help us to find answer for this one
The secondary response in humoral immunity occurs when memory cells bind to ______.
Note: This Question is unanswered, help us to find answer for this one
The helper t-cell clones stimulate antibody production by _____.
Answer
Correct Answer:
Plasma cells
Note: This Question is unanswered, help us to find answer for this one
The eyes and the respiratory tract are both protected against infections by _____.
Answer
Correct Answer:
The secretion of lysozyme onto their surface
Note: This Question is unanswered, help us to find answer for this one
T lymphocytes are to the _____ as b lymphocytes are to the _____.
Answer
Correct Answer:
Thymus; bone marrow
Note: This Question is unanswered, help us to find answer for this one
Prostaglandins function to _________ during an immune response.
Answer
Correct Answer:
Induce fever by raising the body's temperature
Note: This Question is unanswered, help us to find answer for this one
Plasma cells ________.
Answer
Correct Answer:
Have a great deal of rough endoplasmic reticulum reflecting the fact that they secrete a tremendous amount of protein (antibody
Note: This Question is unanswered, help us to find answer for this one
Monoclonal antibodies are used for the diagnosis of all of the following except ________.
Answer
Correct Answer:
Juvenile diabetes
Note: This Question is unanswered, help us to find answer for this one
Innate immunity and acquired immunity are both _____.
Answer
Correct Answer:
Characteristics of all vertebrate animals
Note: This Question is unanswered, help us to find answer for this one
In an antibody molecule, the __________ region mediates binding to host cells.
Note: This Question is unanswered, help us to find answer for this one
Il 2 is involved in __________ tc cells
Answer
Correct Answer:
Self-stimulation of
Note: This Question is unanswered, help us to find answer for this one
Igm is the first class of antibodies to be made during an immune response because ____.
Answer
Correct Answer:
The gene for the mu Fc region is the first to be attached to the variable region gene
Note: This Question is unanswered, help us to find answer for this one
Helper t-lymphocytes secrete ________ to stimulate the proliferation of b-lymphocytes.
Answer
Correct Answer:
Cytokines
Note: This Question is unanswered, help us to find answer for this one
Fever is induced at the systemic level by ________, which is an endogenous pyrogen.
Note: This Question is unanswered, help us to find answer for this one
Cytotoxic t (tc) cells are like natural killer (nk) cells because they both __________.
Answer
Correct Answer:
Secrete granzymes and perforin
Note: This Question is unanswered, help us to find answer for this one
Cd8 markers are to ________ t cells as cd4 markers are to ________ t cells.
Answer
Correct Answer:
Cytoxic; helper
Note: This Question is unanswered, help us to find answer for this one
Autoimmune diseases are an example of a(n) ________ response by the immune system.
Answer
Correct Answer:
Incorrect
Note: This Question is unanswered, help us to find answer for this one
Antibodies are __________ produced in response to an antigen.
Note: This Question is unanswered, help us to find answer for this one
________ is the capacity to mount a secondary response to the same antigen.
Note: This Question is unanswered, help us to find answer for this one
________ exists when the immune system does not respond to a particular antigen.
Answer
Correct Answer:
Tolerance
Note: This Question is unanswered, help us to find answer for this one
Antimicrobial peptides called ________ are secreted in sweat and damage bacteria and fungi.
Answer
Correct Answer:
Dermcidins
Note: This Question is unanswered, help us to find answer for this one
Antigens that depend on the function of t-helper cells are called __________ antigens.
Answer
Correct Answer:
T-dependent
Note: This Question is unanswered, help us to find answer for this one
Antigens bound to mhc ii activate __________.
Answer
Correct Answer:
Helper T cells
Note: This Question is unanswered, help us to find answer for this one
Any substance that triggers an immune response in the body is called a(n) ________.
Note: This Question is unanswered, help us to find answer for this one
A characteristic symptom of necrotizing fasciitis is that the pain __________.
Answer
Correct Answer:
Is disproportionate to the appearance of the infection
Note: This Question is unanswered, help us to find answer for this one
Antibodies are produced and secreted by ______
Answer
Correct Answer:
Plasma cells
Note: This Question is unanswered, help us to find answer for this one
A primary immune response is the ______.
Answer
Correct Answer:
Immune response elicited by the first exposure of lymphocytes to a particular antigen
Note: This Question is unanswered, help us to find answer for this one
When an antigen is bound to a class ii mhc protein, it can activate a ________ cell.
Note: This Question is unanswered, help us to find answer for this one
When an antigen is bound to a class i mhc molecule, it can stimulate a ________ cell.
Answer
Correct Answer:
Cytotoxic T
Note: This Question is unanswered, help us to find answer for this one
White blood cells and ____ carry out innate immune responses
Answer
Correct Answer:
Defensive proteins
Note: This Question is unanswered, help us to find answer for this one
This medullary region of the lymph node contains primarily ________.
Answer
Correct Answer:
Macrophages
Note: This Question is unanswered, help us to find answer for this one
Naturally acquired passive immunity can result from the _____.
Answer
Correct Answer:
Placental transfer of antibodies
Note: This Question is unanswered, help us to find answer for this one
B cells respond to the initial antigen challenge by ________
Answer
Correct Answer:
Producing progeny cells that include plasma cells and memory cells
Note: This Question is unanswered, help us to find answer for this one
Antibody functions include all of the following except ________.
Answer
Correct Answer:
Cross-linking cell-bound antigens on red blood cells when blood types are properly matched
Note: This Question is unanswered, help us to find answer for this one
When antibodies bind antigens, the clumping of antigens results from _____.
Answer
Correct Answer:
The antibody having at least two binding regions
Note: This Question is unanswered, help us to find answer for this one
This variable region gives an antibody ______ for an _______.
Answer
Correct Answer:
Specificity, antigen
Note: This Question is unanswered, help us to find answer for this one
Memory t cells can be up to __________ old.
Note: This Question is unanswered, help us to find answer for this one
T cells of the immune system include _____.
Answer
Correct Answer:
Cytotoxic and helper cells
Note: This Question is unanswered, help us to find answer for this one
Proteins on the surface of phagocytes called ________ aid in the detection of pathogen molecules.
Note: This Question is unanswered, help us to find answer for this one
Most often, antigens are composed of __________.
Answer
Correct Answer:
Glycoproteins
Note: This Question is unanswered, help us to find answer for this one
Membrane attack complex (mac) kills by ________.
Answer
Correct Answer:
Disrupting the selectively permeability of a bacteria's plasma membrane
Note: This Question is unanswered, help us to find answer for this one
Immunological memory accounts for _____.
Answer
Correct Answer:
The ancient observation that someone who had recovered from the plague could safely care for those newly diseased.
Note: This Question is unanswered, help us to find answer for this one
Histamine is released from the _____ cells
Answer
Correct Answer:
Mast cells
Note: This Question is unanswered, help us to find answer for this one
Exogenous antigens are processed for immune recognition by ________ cells.
Answer
Correct Answer:
Dendritic and macrophage
Note: This Question is unanswered, help us to find answer for this one
Complement fixation cannot lead to __________.
Answer
Correct Answer:
Endogenous pyrexia
Note: This Question is unanswered, help us to find answer for this one
Clonal selection of b cells ________.
Answer
Correct Answer:
Results in the formation of plasma cells
Note: This Question is unanswered, help us to find answer for this one
Cell-mediated immunity is to t cells as antibody-mediated immunity is to ___________.
Note: This Question is unanswered, help us to find answer for this one
Antibody structures are perfectly suited to directly link ______ to ______.
Answer
Correct Answer:
Antigen, immune cell
Note: This Question is unanswered, help us to find answer for this one
Antibodies are ___ proteins while antigens are ___ proteins.
Answer
Correct Answer:
Self-produced; foreign
Note: This Question is unanswered, help us to find answer for this one
Activated cd8 t cells become __________.
Answer
Correct Answer:
Cytotoxic T cells
Note: This Question is unanswered, help us to find answer for this one
__________ is not a cardinal sign characteristic of inflammation.
Answer
Correct Answer:
Impaired use
Note: This Question is unanswered, help us to find answer for this one
