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Bios 255 exam 3 review Questions and Answers
100% Pass
primary lymphatic organs - ANSWER ✔✔-red bone marrow and thymus
secondary lymphatic organs - ANSWER ✔✔-lymph nodes, tonsils, and spleen
Lymph draining from the small intestine has a milky appearance because of - ANSWER ✔✔-lipid
contents
Lymph can also contain - ANSWER ✔✔-macrophages, hormones, bacteria, viruses, cellular debris, and
cancer cells
interferons main function - ANSWER ✔✔-Infected cell release interferons and they bind to interferon
receptor on HEALTHY cell and infected cells will die
complement system - ANSWER ✔✔-A group of about 30 blood proteins that may amplify the
inflammatory response, enhance phagocytosis, or directly lyse extracellular pathogens.
Inflammation signs - ANSWER ✔✔-redness, heat, swelling, pain
Antigens - ANSWER ✔✔-foreign substances that trigger the attack of antibodies in the immune response.
epitopes - ANSWER ✔✔-certain regions of an antigen molecule that stimulate immune responses
Haptens - ANSWER ✔✔-antigens too small to provoke immune responses; attach to carrier molecules
Humoral (antibody-mediated) immunity - ANSWER ✔✔-Mediated by antibodies that do not directly
destroy a pathogen but tag it for destruction
Many antibodies are dissolved in body fluids ("humors")
Created by Grace Amelia © 2025, All Rights Reserved.
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Can only work against the extracellular stages of infections by microorganisms
cell-mediated immunity - ANSWER ✔✔-type of immunity produced by T cells that attack infected or
abnormal body cells. They attack within the cell.
MCH II - ANSWER ✔✔-antigen presenting cells triggers activation of Helper T-cells CD4 Cells; triggers
activation of B cells
MCH I - ANSWER ✔✔-CD8 + T lymphocytes recognize antigens bound to this
T/F Vaccines will stimulate both humoral and adaptive immunity - ANSWER ✔✔-true
Hemoglobin will unload oxygen faster when - ANSWER ✔✔-pH lowers become more acidic, Co2
increases, body temperature increases, and BPG increasing
Hemoglobin will bind oxygen faster when - ANSWER ✔✔-pH will become more alkalin, Co2 will
decrease, body temperature will decrease, and BPG will decrease
active immunity - ANSWER ✔✔-A form of acquired immunity in which the body produces its own
antibodies against disease-causing antigens. Gives us memory B cells.
natural immunity - ANSWER ✔✔-Immunity that is partly inherited and partly developed through
healthy living.
aquired immunity - ANSWER ✔✔-Immunity obtained from the development of antibodies in response to
exposure to an antigen.
passive immunity - ANSWER ✔✔-the short-term immunity that results from the introduction of
antibodies from another person or animal.
inspiratory reserve volume - ANSWER ✔✔-Amount of air that can be forcefully inhaled after a normal
tidal volume inhalation. When you take a big inhalation before going under water.
Created by Grace Amelia © 2025, All Rights Reserved.
Bios 255 exam 3 review Questions and Answers
100% Pass
primary lymphatic organs - ANSWER ✔✔-red bone marrow and thymus
secondary lymphatic organs - ANSWER ✔✔-lymph nodes, tonsils, and spleen
Lymph draining from the small intestine has a milky appearance because of - ANSWER ✔✔-lipid
contents
Lymph can also contain - ANSWER ✔✔-macrophages, hormones, bacteria, viruses, cellular debris, and
cancer cells
interferons main function - ANSWER ✔✔-Infected cell release interferons and they bind to interferon
receptor on HEALTHY cell and infected cells will die
complement system - ANSWER ✔✔-A group of about 30 blood proteins that may amplify the
inflammatory response, enhance phagocytosis, or directly lyse extracellular pathogens.
Inflammation signs - ANSWER ✔✔-redness, heat, swelling, pain
Antigens - ANSWER ✔✔-foreign substances that trigger the attack of antibodies in the immune response.
epitopes - ANSWER ✔✔-certain regions of an antigen molecule that stimulate immune responses
Haptens - ANSWER ✔✔-antigens too small to provoke immune responses; attach to carrier molecules
Humoral (antibody-mediated) immunity - ANSWER ✔✔-Mediated by antibodies that do not directly
destroy a pathogen but tag it for destruction
Many antibodies are dissolved in body fluids ("humors")
Created by Grace Amelia © 2025, All Rights Reserved.
, 2|Page
Can only work against the extracellular stages of infections by microorganisms
cell-mediated immunity - ANSWER ✔✔-type of immunity produced by T cells that attack infected or
abnormal body cells. They attack within the cell.
MCH II - ANSWER ✔✔-antigen presenting cells triggers activation of Helper T-cells CD4 Cells; triggers
activation of B cells
MCH I - ANSWER ✔✔-CD8 + T lymphocytes recognize antigens bound to this
T/F Vaccines will stimulate both humoral and adaptive immunity - ANSWER ✔✔-true
Hemoglobin will unload oxygen faster when - ANSWER ✔✔-pH lowers become more acidic, Co2
increases, body temperature increases, and BPG increasing
Hemoglobin will bind oxygen faster when - ANSWER ✔✔-pH will become more alkalin, Co2 will
decrease, body temperature will decrease, and BPG will decrease
active immunity - ANSWER ✔✔-A form of acquired immunity in which the body produces its own
antibodies against disease-causing antigens. Gives us memory B cells.
natural immunity - ANSWER ✔✔-Immunity that is partly inherited and partly developed through
healthy living.
aquired immunity - ANSWER ✔✔-Immunity obtained from the development of antibodies in response to
exposure to an antigen.
passive immunity - ANSWER ✔✔-the short-term immunity that results from the introduction of
antibodies from another person or animal.
inspiratory reserve volume - ANSWER ✔✔-Amount of air that can be forcefully inhaled after a normal
tidal volume inhalation. When you take a big inhalation before going under water.
Created by Grace Amelia © 2025, All Rights Reserved.
