BIO 169 Exam 2 Questions with Correct Answers Latest Update 2025/2026
Select the correct statement about lymphocytes. - Answers B cells produce plasma cells which
secrete antibodies into the blood.
Which of the following is considered a primary lymphoid organ? - Answers Thymus
Which of the following examples below describes an autoimmune disease? - Answers Antibody
binding to self ACh receptors of motor end plates resulting in muscle weakness.
Vaccines work by - Answers Priming the adaptive immunity with a relatively harmless primary
exposure.
All but one of the follow occur during the inflammatory response. Select the example below that
does not describe the process of inflammation. - Answers Vasoconstriction will prevent
excessive blood loss due to injury.
Without a positive selection process in lymphocyte maturation - Answers T-cells would not be
able to properly bind to APC's and therefore not be activated by them.
Select the best description of the negative selection process of lymphocyte maturation. -
Answers Removal of lymphocytes that react with 'self' cells.
Which of the following is characteristic of complete antigens? - Answers Reactivity with
antibody
T cell activation requires - Answers Antigen binding and co-stimulation
Complete proteins and antibodies coat a microorganism to make them tasty and provide
binding sites enabling macrophages and neutrophils to phagocytize the organism. This
phenomenon is termed: - Answers Opsinization
Phagocyte mobilization involves? - Answers Mainly neutrophil and macrophage migration into
inflamed areas.
Fever - Answers A production is regulated by chemicals that reset the body's thermostat to a
higher setting.
Helper T Cells - Answers Function in adaptive immune system activation.
Antibody functions include all of the following except? - Answers A crosslinking cell bound
antigens on red blood cells when blood types are properly matched.
With the bohr effect more oxygen is released because a(n). - Answers Decrease in pH (acidosis)
weakens the hemoglobin-oxygen bond.
The major nonelastic source of resistance to air flow in the respiratory passageways is -
, Answers Friction related diameter
The lung volume that represents the total volume of exchangeable air is the - Answers Vital
capacity
Protein containing fluid within lymphatic vessels - Answers Lymph
Stores blood platelets - Answers Spleen
Receives lymph from most of the body - Answers Thoracic Duct
Small organs intimately associated with lymphatic vessels - Answers Lymph Nodes
Isolated clusters of lymph follicles found in the wall of the small intestine - Answers Peyer's
Patch
Enables quick and efficient response to secondary exposure to antigen - Answers Memory Cell
Absence results in no immune response - Answers Helper T Cells
Fors antibody producing cells - Answers B Cell
Kills cancer cells and virus infected body cells - Answers Natural Killer T cell
Slows or stops immune response - Answers Regulatory T cell
Tidal Volume - Answers B
Inspiratory Reserve Volum - Answers A
Residual Volume - Answers D
Expiratory Reserve Volume - Answers C
Air that does not participate in the exchange of gases - Answers D
Small secondary lymphoid organs, which cluster along lymph vessels, are termed - Answers
Lymph Nodes
Lymph transport involves all of the following EXCEPT - Answers Smooth muscle contraction in
the lymph capillary walls.
The thymus is most active during - Answers Childhood
Antibodies that act against a particular foreign substance are released by - Answers Plasma
Cells
Which cells are the main specific "warriors" of the immune system? - Answers Lymphocytes
Select the correct statement about lymphocytes. - Answers B cells produce plasma cells which
secrete antibodies into the blood.
Which of the following is considered a primary lymphoid organ? - Answers Thymus
Which of the following examples below describes an autoimmune disease? - Answers Antibody
binding to self ACh receptors of motor end plates resulting in muscle weakness.
Vaccines work by - Answers Priming the adaptive immunity with a relatively harmless primary
exposure.
All but one of the follow occur during the inflammatory response. Select the example below that
does not describe the process of inflammation. - Answers Vasoconstriction will prevent
excessive blood loss due to injury.
Without a positive selection process in lymphocyte maturation - Answers T-cells would not be
able to properly bind to APC's and therefore not be activated by them.
Select the best description of the negative selection process of lymphocyte maturation. -
Answers Removal of lymphocytes that react with 'self' cells.
Which of the following is characteristic of complete antigens? - Answers Reactivity with
antibody
T cell activation requires - Answers Antigen binding and co-stimulation
Complete proteins and antibodies coat a microorganism to make them tasty and provide
binding sites enabling macrophages and neutrophils to phagocytize the organism. This
phenomenon is termed: - Answers Opsinization
Phagocyte mobilization involves? - Answers Mainly neutrophil and macrophage migration into
inflamed areas.
Fever - Answers A production is regulated by chemicals that reset the body's thermostat to a
higher setting.
Helper T Cells - Answers Function in adaptive immune system activation.
Antibody functions include all of the following except? - Answers A crosslinking cell bound
antigens on red blood cells when blood types are properly matched.
With the bohr effect more oxygen is released because a(n). - Answers Decrease in pH (acidosis)
weakens the hemoglobin-oxygen bond.
The major nonelastic source of resistance to air flow in the respiratory passageways is -
, Answers Friction related diameter
The lung volume that represents the total volume of exchangeable air is the - Answers Vital
capacity
Protein containing fluid within lymphatic vessels - Answers Lymph
Stores blood platelets - Answers Spleen
Receives lymph from most of the body - Answers Thoracic Duct
Small organs intimately associated with lymphatic vessels - Answers Lymph Nodes
Isolated clusters of lymph follicles found in the wall of the small intestine - Answers Peyer's
Patch
Enables quick and efficient response to secondary exposure to antigen - Answers Memory Cell
Absence results in no immune response - Answers Helper T Cells
Fors antibody producing cells - Answers B Cell
Kills cancer cells and virus infected body cells - Answers Natural Killer T cell
Slows or stops immune response - Answers Regulatory T cell
Tidal Volume - Answers B
Inspiratory Reserve Volum - Answers A
Residual Volume - Answers D
Expiratory Reserve Volume - Answers C
Air that does not participate in the exchange of gases - Answers D
Small secondary lymphoid organs, which cluster along lymph vessels, are termed - Answers
Lymph Nodes
Lymph transport involves all of the following EXCEPT - Answers Smooth muscle contraction in
the lymph capillary walls.
The thymus is most active during - Answers Childhood
Antibodies that act against a particular foreign substance are released by - Answers Plasma
Cells
Which cells are the main specific "warriors" of the immune system? - Answers Lymphocytes
