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Bios 255 exam 3 review Questions and Answers 100% Pass

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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 c...

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bios 255 exam 3 review questions and answers 100

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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.

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