Microbiology 2420: Chapters 15 and
16, Immunity, Test Questions and All
Correct Answers.
Innate immunity - Answer Resistance to pathogens conferred by barriers, chemicals, cells
and processes that remain unchanged upon subsequent infections with the same pathogen
Examples of innate immunity - Answer Skin
Stomach acid (pH)
epithelial barriers
phagocytes
Natural Killer cells (NK cells)
Fixed phagocytes of the epidermis - Answer Dendritic cells
Where are mucus-secreting membranes found? - Answer Urinary system
Digestive cavity
Respiratory passages
The complement system involves - Answer Serum proteins involved in nonspecific defense
It involves factors B, D and P - Answer Alternative pathway
What would happen if complement was not inactivated? - Answer It would make holes in
the body's own cells
Gamma interferon - Answer The type of interferon present late in an infection
Interferons - Answer Protein molecules released by host cell to nonspecifically inhibit the
spread of viruses
Cause many of the symptoms typically associated with viral infections
What binds iron? - Answer Lactoferrin
,Siderophores
Transferrin
Goblet cell function - Answer Secrete mucus
Lysozyme function - Answer Breaks bonds in bacterial cell well
Kupffer cell - Answer Phagocytic cell in the liver
Dendritic cell function - Answer Devours pathogens in the epidermis of skin
Cell from sebaceous gland - Answer Secretes sebum
Bone marrow stem cell - Answer Develops into formed elements of the blood
Eosinopil - Answer Leukocyte that primarily attacks parasitic worms
Alveolar macrophage - Answer Phagocytic cell in the lungs
Microglia - Answer Phagocytic cell in the CNS
Wandering macrophage - Answer Intercellular scavenger
Adaptive immunity - Answer Resistance against pathogens that acts more efficiently upon
subsequent infections with the same pathogens
The body's ability to recognize and then mount a defense against distinct invaders and their
products
5 distinctive attributes of adaptive immunity - Answer Specificity
Inducibility
Clonality
Unresponsiveness to self
Memory
, 2 types of Lymphocytes - Answer B lymphocytes/cells (mature in red bone marrow)
T lymphocytes/cells (mature in thymus)
Humoral immune response - Answer Body mounts responses against exogenous pathogens.
Activates only in response to specific pathogens
Cell-mediated immune response - Answer Responds to intracellular pathogens and
abnormal body cells
The most common intracellular pathogens are viruses but response also effective against cancer
cells and intracellular protozoa/bacteria
Antigen - Answer Protein on a surface pathogen that initiates an immune response
Epitope - Answer The 3-dimensional shape of a region of an antigen that is recognized by the
immune system
Ex: Bacterial cell walls, capsules, pili, flagella, proteins of viruses, fungi and protozoa
Paratope - Answer Antibody combining site
Haptens - Answer Molecules so small they evade detection but can become antigenic when
bound to larger carrier molecules (often proteins)
Examples of Haptens - Answer Antibiotics
Analgesics
Poison Ivy
3 types of antigens - Answer Exogenous antigens
Endogenous antigens
Autoantigens
Exogenous antigens - Answer Antigens produced by microorganisms that multiply outside
the cells of the body.
Include toxins and other secretions and components of microbial cell walls, membranes, flagella
and pili
16, Immunity, Test Questions and All
Correct Answers.
Innate immunity - Answer Resistance to pathogens conferred by barriers, chemicals, cells
and processes that remain unchanged upon subsequent infections with the same pathogen
Examples of innate immunity - Answer Skin
Stomach acid (pH)
epithelial barriers
phagocytes
Natural Killer cells (NK cells)
Fixed phagocytes of the epidermis - Answer Dendritic cells
Where are mucus-secreting membranes found? - Answer Urinary system
Digestive cavity
Respiratory passages
The complement system involves - Answer Serum proteins involved in nonspecific defense
It involves factors B, D and P - Answer Alternative pathway
What would happen if complement was not inactivated? - Answer It would make holes in
the body's own cells
Gamma interferon - Answer The type of interferon present late in an infection
Interferons - Answer Protein molecules released by host cell to nonspecifically inhibit the
spread of viruses
Cause many of the symptoms typically associated with viral infections
What binds iron? - Answer Lactoferrin
,Siderophores
Transferrin
Goblet cell function - Answer Secrete mucus
Lysozyme function - Answer Breaks bonds in bacterial cell well
Kupffer cell - Answer Phagocytic cell in the liver
Dendritic cell function - Answer Devours pathogens in the epidermis of skin
Cell from sebaceous gland - Answer Secretes sebum
Bone marrow stem cell - Answer Develops into formed elements of the blood
Eosinopil - Answer Leukocyte that primarily attacks parasitic worms
Alveolar macrophage - Answer Phagocytic cell in the lungs
Microglia - Answer Phagocytic cell in the CNS
Wandering macrophage - Answer Intercellular scavenger
Adaptive immunity - Answer Resistance against pathogens that acts more efficiently upon
subsequent infections with the same pathogens
The body's ability to recognize and then mount a defense against distinct invaders and their
products
5 distinctive attributes of adaptive immunity - Answer Specificity
Inducibility
Clonality
Unresponsiveness to self
Memory
, 2 types of Lymphocytes - Answer B lymphocytes/cells (mature in red bone marrow)
T lymphocytes/cells (mature in thymus)
Humoral immune response - Answer Body mounts responses against exogenous pathogens.
Activates only in response to specific pathogens
Cell-mediated immune response - Answer Responds to intracellular pathogens and
abnormal body cells
The most common intracellular pathogens are viruses but response also effective against cancer
cells and intracellular protozoa/bacteria
Antigen - Answer Protein on a surface pathogen that initiates an immune response
Epitope - Answer The 3-dimensional shape of a region of an antigen that is recognized by the
immune system
Ex: Bacterial cell walls, capsules, pili, flagella, proteins of viruses, fungi and protozoa
Paratope - Answer Antibody combining site
Haptens - Answer Molecules so small they evade detection but can become antigenic when
bound to larger carrier molecules (often proteins)
Examples of Haptens - Answer Antibiotics
Analgesics
Poison Ivy
3 types of antigens - Answer Exogenous antigens
Endogenous antigens
Autoantigens
Exogenous antigens - Answer Antigens produced by microorganisms that multiply outside
the cells of the body.
Include toxins and other secretions and components of microbial cell walls, membranes, flagella
and pili
