Which term is used to describe hypersensitivity of the immune system to reLatively harmless environmental antigens? a. Humoral response. b. Allergy. c. Immune deficiency. d. None of the above. The skin is one of the first defenses against foreign pathogens. This is an example of a. Adaptive immunity 2. innate immunity c. both a and b d. neither a nor b

Which term is used to describe hypersensitivity of the immune system to reLatively harmless environmental antigens? a. Humoral response. b. Allergy. c. Immune deficiency. d. None of the above. The skin is one of the first defenses against foreign pathogens. This is an example of a. Adaptive immunity 2. innate immunity c. both a and b d. neither a nor b

Concepts of Biology

1st Edition

ISBN:9781938168116

Author:Samantha Fowler, Rebecca Roush, James Wise

Publisher:Samantha Fowler, Rebecca Roush, James Wise

Chapter17: The Immune System And Disease

Section: Chapter Questions

Problem 11RQ: The fact that the body does not normally mount an immune response to the molecules in food is an...

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The benefit of specific immunity is the production of ________ that provide long-lasting protection. A) antibodies B) plasma cells C) T helper cells D) memory cells
Which of the following describes the self-tolerance of adaptive immunity? A) a given immune response acts against a specific antigen possessed by a pathogen B) both cells and antibodies are involved in immune responses C) immune responses against previously encountered pathogens are faster and more potent D) immune responses against the body's own molecules do not normally occur E) pathogens stimulate cells involved in adaptive immunity
The acquired ability to prevent an unnecessary or destructive immune reaction to a harmless foreign particle, such as a food protein, is called ________. a. the TH2 response b. allergy c. immune tolerance d. autoimmunity
Why is the secondary immune response so much stronger than theprimary response?a. Because high concentrations of antibodies are already presentb. Because the phagocytes present the antigens more rapidlyc. Because memory B cells can rapidly convert to plasma cellsd. Because protein synthesis occurs more quickly in memory cells
Which of the following accurately describes the inducibility of adaptive immunity? A) a given immune response acts against a specific antigen possessed by a pathogen B) both cells and antibodies are involved in immune responses C) immune cells acting against a given pathogen increase greatly in number upon encountering that pathogen D) immune responses against the body's own molecules do not normally occur E) pathogens stimulate cells involved in adaptive immunity
Which of the following accurately describes the inducibility of adaptive immunity? A) a given immune response acts against a specific antigen possessed by a pathogen B) both cells and antibodies are involved in immune responses C) immune cells acting against a given pathogen increase greatly in number upon encountering that pathogen D) immune responses against previously encountered pathogens are faster and more potent E) immune responses against the body's own molecules do not normally occur F) pathogens stimulate cells involved in adaptive immunity
Which of these characteristics is not a major factor in adaptive oracquired immunity?a. specificity b. chemotaxis c. recognition d. memory
What are the roles of the innate immune system? Select all that apply. A. identity self vs. non-self B. provide a physical barrier to infection C. initiate inflammation D. suppress proliferation E. call for help from the adaptive immune system F. circulate fluids through the lymphatic system
__________________ is a condition that results when cytotoxic T cells attack the body’s own cells.a. An allergic response b. Autoimmune disease c. Passive immunityd. Active immunity
Which of the following pairs is mismatched? a. activation of memory cells: secondary immune response b. central memory T cells: restricted to non-lymphoid tissues c. protective immunity: antibodies persist after primary immune response d. attenuated vaccine: not pathogenic e. vaccination: primary immune response.
Suppose a person recovers normally from viral infections, but then gets the same viral infections over and over again- unlike the rest of us. A. What is probably wrong –B cells, helper T cells and/or cytotoxic T cells? B. Should this person be at a higher risk of cancer than the rest of us? C. Should this person be able to lyse bacterial cells as well as the rest of us? D. Should this person tolerate a graft (from an unreated person) better than you are me?
Explain why each choice (a-d) is correct or incorrect. A vaccine is effective because a. The vaccine contains the antibodies necessary to fight infection. b. The vaccine contains the lymphocytes necessary to fight infection. c. The secondary response of the adaptive immunity is faster and more efficient than the primary response. d. B lymphocytes are unable to mount an immune response the first time they are exposed to a new pathogen.