Brock Biology of Microorganisms Chapter 24 Exam Questions With Correct Answers
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Brock Biology of Microorganisms
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Brock Biology Of Microorganisms
Brock Biology of Microorganisms Chapter 24
Exam Questions With Correct Answers
The ability of humans to resist a disease is called - answerImmunity
Cells that can engulf foreign particles, and can ingest, kill, and digest most bacterial pathogens
are called - answerphagocytes
Adaptive immunity...
Brock Biology of Microorganisms Chapter 24
Exam Questions With Correct Answers
The ability of humans to resist a disease is called - answer✔Immunity
Cells that can engulf foreign particles, and can ingest, kill, and digest most bacterial pathogens
are called - answer✔phagocytes
Adaptive immunity occurs when - answer✔the innate immune response fails to eliminate
pathogens in the body and virulent infections persist after the initial innate defense response.
Blood and lymph have the following in common EXCEPT - answer✔red blood cells.
Stem cells are produced and developed in the - answer✔bone marrow
Which of the following is TRUE about cytokines - answer✔They are proteins that play an
important role in immunity and the growth of stem cells.
Which of the following cell types has NO nucleus? - answer✔erythrocytes
The secondary lymphoid organs consist of the following EXCEPT - answer✔All of these organs
are secondary lymphoid organs.
Which of the following can cause allergy symptoms and inflammation by degranulation? -
answer✔polymorphonuclear leukocyte
The unique antigen-reactive proteins of T cells are - answer✔T cell receptors.
The rapid increase in adaptive immunity after a second antigen exposure is called -
answer✔specificity
An example of pathogen-associated molecular patterns (PAMP) is - answer✔lipopolysaccharide
(LPS).
The process by which antibodies block interactions between pathogens or their products and host
cells is termed - answer✔neutralization.
Which of the following are molecular mediators of inflammation? - answer✔both chemokines
and cytokines
IgG, IgM, and IgA are examples of ________ found in blood. - answer✔antibodies
T cells interact with the peptide-MHC complex using - answer✔T-cell receptors
Enhanced phagocytosis of antibody-sensitized cells is known as - answer✔opsonization.
Phagocytes have general antibody receptors called ________ that bind to any antibody attached
to an antigen. - answer✔Fc receptors
Which of the treatments listed below would be MOST effective for a patient with a genetic
defect that causes severe combined immunodeficiency (SCID)? - answer✔bone marrow
transplant
Which is an example of acquisition of natural passive immunity? - answer✔a fetus protected
from disease by its mother's antibodies
Which of these is often used as a prophylactic measure to protect a person against future attack
by a pathogen? - answer✔vaccination
An antigen must be at least ________ amino acids long to be effective in a vaccine. -
answer✔100
Type I hypersensitivity is caused by the release of vasoactive products from mast cells coated
with - answer✔IgE
In Hashimotos's disease, autoantibodies are made against ________, a product of the thyroid
gland. - answer✔thyroglobulin
Systemic lupus erythematosus (SLE) is an example of a disease caused by type ________
hypersensitivity. - answer✔III
Which of the following diseases is/are associated with organ-specific autoimmune disease? -
answer✔autoimmune hypothyroidism and juvenile (type I) diabetes
New vaccine strategies resulting from progress in biochemistry and molecular biology include
the production of - answer✔DNA, recombinant vector, and synthetic peptide vaccines.
Which of the following immunogens is MOST effective as a vaccine? - answer✔live virus
The life-threatening condition that may develop during a type I hypersensitivity reaction is called
- answer✔anaphylaxis.
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