Campbell Biology in Focus, Books a la Carte Edition; Modified Mastering Biology with Pearson eText - ValuePack Access Card - for Campbell Biology in Focus (2nd Edition)
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Chapter 35, Problem 6TYU
Summary Introduction

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Vaccination is the process of inoculating an individual with attenuated antigen or antigen similar to the pathogen that elicit an immune response in the individual but does not cause infection in the individual. In this way the immune system forms the memory cells that activate a quicker response when the person comes in contact which the actual infection

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Which of the following statements about T cells is false? a. Helper T cells release cytokines while cytotoxic T cells kill the infected cell. b. Helper T cells are CD4+, while cytotoxic T cells are CD8+. c. MHC II is a receptor found on most body cells, while MHC I is a receptor found on immune cells only. d. The T cell receptor is found on both CD4+ and CD8+ T cells.
Complement must be inactivated because if it were NOT, A. protein synthesis would be inhibited, thus halting important cell processes. В. necessary interferons would not be produced. C. viruses could continue to multiply inside host cells using the host's own metabolic machinery. D. it could make holes in the body's own cells.
Which event happens first during cytotoxic T-cell activation? a. Cytotoxic T cells secrete perforin and granzyme. b. Cytotoxic T cells recognize foreign antigen presented on the surface of a MHC I molecule. c. Cytotoxic T cells proliferate to form many new cells specific for the same antigen d. Cytotoxic T cells recognize foreign antigen presented on the surface of a TCR.
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