Page | 1
BIO 669 QUIZ 1 2026 QUESTIONS AND
ANSWERS| ACE YOUR GRADES.
When are platelets activated? - correct answer -by tissue
destruction and inflammation
What are neutrophils? - correct answer -WBC's that ingest and
destroy microbes in a process called phagocytosis.
Component of purulent exudate
What are eosinophils? - correct answer -defense against
parasites and regulation of vascular mediators
Where are monocytes produced? - correct answer -bone marrow
What do monocytes develop into? - correct answer -macrophages
, Page | 2
What is a macrophage? - correct answer -A large cell that can
ingest and destroy dying cells or cellular debris
Later arrival- 24 hours or later
Neutrophiles arrive first at an injury or infection
What do dendritic cells do? - correct answer -detect signs of
infection then move to lymph to activate lymphocytes (made in
bone marrow, have B lymphocytes and T lymphocytes.
B-make antibodie
T- kill tumor cell and control immune response
What is phagocytosis? - correct answer -process by which a cell
ingests and disposes of foreign material
What is margination? - correct answer -adherence of leukocytes
(wbc) to endothelial cells
At point of damage
Endothelial cell most inner layer of vessel
Removal of pathogens
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What is diapedesis? - correct answer -Emigration of cells through
the endothelial junctions
Help movement of leukocytes form the blood to areas of infection
or tissue damage mostly leukocytes
What are the steps of phagocytosis? - correct answer -Adherence
Engulfment
Phagosome formation
Fusion with lysosomal granules
Destruction of the target
What are natural killer cells? - correct answer -recognize and
eliminate cells that are infected with viruses and cancer cells
What is a left shift? - correct answer -increase number of
immature leukocytes due to rapid production and release
Severe enemia
Can be caused by inflammation because cytokines stimulate
neutrophile production from bone marrow which release mature
and immature cells
Or caused by necrosis is when this occurs
, Page | 4
(mostly signifies infection of bacterial type
What is chronic inflammation? - correct answer -Inflammation that
last from 2 weeks to months to years; It is often related to an
unsuccessful acute inflammatory response.
What is chronic inflammation characterized by? - correct answer -
pus formation, suppuration (purulent drainage), and incomplete
wound healing
What is the purpose of adaptive immunity? - correct answer -
Destruction of infectious microorganisms that are resistant to
inflammation
Long-term highly effective protection against future exposure to
the same microorganism
What is active immunity? - correct answer -exposure to antigen
Immunizations
BIO 669 QUIZ 1 2026 QUESTIONS AND
ANSWERS| ACE YOUR GRADES.
When are platelets activated? - correct answer -by tissue
destruction and inflammation
What are neutrophils? - correct answer -WBC's that ingest and
destroy microbes in a process called phagocytosis.
Component of purulent exudate
What are eosinophils? - correct answer -defense against
parasites and regulation of vascular mediators
Where are monocytes produced? - correct answer -bone marrow
What do monocytes develop into? - correct answer -macrophages
, Page | 2
What is a macrophage? - correct answer -A large cell that can
ingest and destroy dying cells or cellular debris
Later arrival- 24 hours or later
Neutrophiles arrive first at an injury or infection
What do dendritic cells do? - correct answer -detect signs of
infection then move to lymph to activate lymphocytes (made in
bone marrow, have B lymphocytes and T lymphocytes.
B-make antibodie
T- kill tumor cell and control immune response
What is phagocytosis? - correct answer -process by which a cell
ingests and disposes of foreign material
What is margination? - correct answer -adherence of leukocytes
(wbc) to endothelial cells
At point of damage
Endothelial cell most inner layer of vessel
Removal of pathogens
, Page | 3
What is diapedesis? - correct answer -Emigration of cells through
the endothelial junctions
Help movement of leukocytes form the blood to areas of infection
or tissue damage mostly leukocytes
What are the steps of phagocytosis? - correct answer -Adherence
Engulfment
Phagosome formation
Fusion with lysosomal granules
Destruction of the target
What are natural killer cells? - correct answer -recognize and
eliminate cells that are infected with viruses and cancer cells
What is a left shift? - correct answer -increase number of
immature leukocytes due to rapid production and release
Severe enemia
Can be caused by inflammation because cytokines stimulate
neutrophile production from bone marrow which release mature
and immature cells
Or caused by necrosis is when this occurs
, Page | 4
(mostly signifies infection of bacterial type
What is chronic inflammation? - correct answer -Inflammation that
last from 2 weeks to months to years; It is often related to an
unsuccessful acute inflammatory response.
What is chronic inflammation characterized by? - correct answer -
pus formation, suppuration (purulent drainage), and incomplete
wound healing
What is the purpose of adaptive immunity? - correct answer -
Destruction of infectious microorganisms that are resistant to
inflammation
Long-term highly effective protection against future exposure to
the same microorganism
What is active immunity? - correct answer -exposure to antigen
Immunizations
