EBK BIOLOGY
5th Edition
ISBN: 9780133954425
Author: Maier
Publisher: YUZU
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Textbook Question
Chapter 20, Problem 3AAATB
Why is your immune system usually more effective at fighting off infection the second time you are exposed to a pathogen?
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Part of the complement system of defense is opsonization. This process
coats the pathogen exterior so that it is recognized by the host's phagocytes.
creates an acidic environment that prevents pathogen attachment
causes holes to form in the pathogen's cell walls.
causes the pathogen to become trapped in mucus.
Why is antigen-presentation important in fighting infection?
Part of the complement system of defense is opsonization. This process
Group of answer choices
creates an acidic environment that prevents pathogen attachment
coats the pathogen exterior so that it is recognized by the host's phagocytes.
causes the pathogen to become trapped in mucus.
causes holes to form in the pathogen's cell walls.
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- The primary function of the immune system is to protect the host from invasion by foreign organisms. But how does the immune system prevent itself from mounting attacks against its host? In other words, how does the immune system distinguish between self and nonself?arrow_forwardAlthough the immune system has two arms, it has been said, “No T cells, no immunity.” How is this so?arrow_forwardWhich of the following statements is true of acquired immunity? It does not involve experience and its forms include phagocytosis and inflammation. Acquired immune responses take longer to initiate than natural immune responses. An effective immune response occurs even before prior exposure to a particular antigen. It consists of a number of inborn processes that help remove foreign substances from the body.arrow_forward
- How does humoral immune system works when our body is infected?arrow_forwardOne of the following doesn't cause inflammations and so doesn't induce immune response of the body. * O necrosis apoptosis pathogen entry to the body bacterial infection viral infection O O Oarrow_forwardWhich of the following is NOT one of the major functions of T lymphocytes (T cells)? activating the immune system binding to antigens presented by MHC proteins production of antibodies forming memory cells to more rapidly respond to future infections by the same pathogen attacking our own cells that are infected with a virus or cancerousarrow_forward
- The correct order of words to describe how innate immune response responds to a pathogen that has gotten by the physical and chemical barriers is: À) Skin, Saliva, Cytokines, Macrophage B)Macrophage, Cytokines, Neutrophil, Natural Killer Cell C) Neutrophil, Cytokines, Killer T Cell, Antibodies D) Antigen, Macrophage, B Cell, Killer T Cellarrow_forwardWhich one of the following statements regarding our innate immune system is false? Question 15 options: The normal flora takes up space so that pathogenic microbes can't grow. The skin prevents entry of microbes into the body. Coughing speeds up the ciliary escalator, while smoking can destroy it. Phagocytosis destroys microbes that have escaped our physical and chemical barriers. Macrophages create antibodies against specific microbes.arrow_forwardWhat are the functions of the complement system in the immune system? Why is the complement system unable to destroy viruses?arrow_forward
- What does the Immune system do for the body?arrow_forwardWhich of the following types of immunity is responsible for preventing pathogens from entering the cell? antibody-mediated (Humoral) immunity OOOO sarcoplasmic immunity pathogenic immunity cell-mediated immunityarrow_forwardIn an immune response, what is the main function of the circulatory system? to produce inflammation and activate B cells to send chemical signals and transport immune cells to stimulate infected cells and release interferons to trap pathogens and attract phagocytesarrow_forward
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