LATG-Chp.12 Immunology questions
with answers.
Cowpox ANS -The first study of immunity was in the 1700s when Edward Jenner proved that immunity
to small pox infection was conferred by exposure to _____, a similar but less deadly pox virus
Louis Pasteur ANS -Studied the resistance to fowl cholera in chickens.
Pasteurella multocida ANS -Resistance to fowl cholera in chickens is caused by a bacterial species now
identified as
True ANS -Infection does not always lead to disease. It is only when the immune system is
overwhelmed by infection does clinical disease manifest.
Characteristics of "self" are attributed to macromolecules on cell surfaces that are called the major
histocompatability complex (MHC) proteins. ANS -In reference to the immune system, what is "self"?
Antigens ANS -What initiates an immune response?
Pathogens ANS -Proteins from a genetically different individual
Antigenicity ANS -Degree to which an antigen can stimulate an immune response
Thymus
Bone marrow
Liver
Spleen ANS -Where are leukocytes generated?
Innate Immunity
,Acquired Immunity (Adaptive) ANS -What are the two types of immunity in vertebrates?
Adaptive immunity ANS -Acquired immunity is also known as
Innate immunity ANS -Immunity that provides the first line of defense against invading foreign
substances.
This immunity consists of physical, biochemical, or cellular agents which are natural body defenses that
detect and neutralize potential invaders.
Intact skin ANS -________ is one of the most effective barriers against infection.
Innate ANS -Physical barriers (skin) that prevent entry of the pathogen are apart of what immunity?
Lysozyme ANS -Saliva, tears, and nasal secretions contain an enzyme known as _______ that breaks
apart bacterial cell walls.
True ANS -The extreme acidity of the stomach is a chemical mechanism of innate immune defense.
Species
Sex
Nutrition
Health status
Age
Genetic constitution ANS -What are some of the factors that influence the degree of an individuals
innate resistance?
Dog distemper ANS -Cats are not susceptible to
Hog ANS -Humans are resistant to ______cholera
, Reactive ANS -If a pathogen does get through the physical and chemical barriers, _______ proteins in
the bloodstream offer a second line of defense.
Complement proteins ANS -Help destroy invading organisms.
Liver (primarily)
Monocytes
Macrophages ANS -What produces complement proteins?
-Compliment proteins float, in an inactive state, around the blood and tissue spaces.
-Rapidly activated when they recognize a pathogen's surface molecules or the MHC proteins of a foreign
cell are nonself.
-These proteins adhere to the surface of the invading organisms and facilitate an attack by phagocytic
cells.
-Complement proteins can also puncture the membranes of foreign cells, causing lysis. ANS -How do
compliment proteins 'work'?
Interferons ANS -Chemicals that carry out communication among cells.
alpha
beta
gamma ANS -What are the 3 types of interferons?
Immune cells
Endothelial cells
Fibroblasts ANS -Which cells produce interferons?
-Interfere with viral replication
-Heighten the immune response of surrounding cells
-Stimulate the activity of immune cells (macrophages) ANS -What is the function of interferons?
with answers.
Cowpox ANS -The first study of immunity was in the 1700s when Edward Jenner proved that immunity
to small pox infection was conferred by exposure to _____, a similar but less deadly pox virus
Louis Pasteur ANS -Studied the resistance to fowl cholera in chickens.
Pasteurella multocida ANS -Resistance to fowl cholera in chickens is caused by a bacterial species now
identified as
True ANS -Infection does not always lead to disease. It is only when the immune system is
overwhelmed by infection does clinical disease manifest.
Characteristics of "self" are attributed to macromolecules on cell surfaces that are called the major
histocompatability complex (MHC) proteins. ANS -In reference to the immune system, what is "self"?
Antigens ANS -What initiates an immune response?
Pathogens ANS -Proteins from a genetically different individual
Antigenicity ANS -Degree to which an antigen can stimulate an immune response
Thymus
Bone marrow
Liver
Spleen ANS -Where are leukocytes generated?
Innate Immunity
,Acquired Immunity (Adaptive) ANS -What are the two types of immunity in vertebrates?
Adaptive immunity ANS -Acquired immunity is also known as
Innate immunity ANS -Immunity that provides the first line of defense against invading foreign
substances.
This immunity consists of physical, biochemical, or cellular agents which are natural body defenses that
detect and neutralize potential invaders.
Intact skin ANS -________ is one of the most effective barriers against infection.
Innate ANS -Physical barriers (skin) that prevent entry of the pathogen are apart of what immunity?
Lysozyme ANS -Saliva, tears, and nasal secretions contain an enzyme known as _______ that breaks
apart bacterial cell walls.
True ANS -The extreme acidity of the stomach is a chemical mechanism of innate immune defense.
Species
Sex
Nutrition
Health status
Age
Genetic constitution ANS -What are some of the factors that influence the degree of an individuals
innate resistance?
Dog distemper ANS -Cats are not susceptible to
Hog ANS -Humans are resistant to ______cholera
, Reactive ANS -If a pathogen does get through the physical and chemical barriers, _______ proteins in
the bloodstream offer a second line of defense.
Complement proteins ANS -Help destroy invading organisms.
Liver (primarily)
Monocytes
Macrophages ANS -What produces complement proteins?
-Compliment proteins float, in an inactive state, around the blood and tissue spaces.
-Rapidly activated when they recognize a pathogen's surface molecules or the MHC proteins of a foreign
cell are nonself.
-These proteins adhere to the surface of the invading organisms and facilitate an attack by phagocytic
cells.
-Complement proteins can also puncture the membranes of foreign cells, causing lysis. ANS -How do
compliment proteins 'work'?
Interferons ANS -Chemicals that carry out communication among cells.
alpha
beta
gamma ANS -What are the 3 types of interferons?
Immune cells
Endothelial cells
Fibroblasts ANS -Which cells produce interferons?
-Interfere with viral replication
-Heighten the immune response of surrounding cells
-Stimulate the activity of immune cells (macrophages) ANS -What is the function of interferons?
