are working in a hospital and saw a patient who has rashes on his body, conjunctivitis, facial paralysis, and a swollen knee. Since you just learned about lymphocytes and the MHC classes in Dr. Starnges lecture, what MHC class and lymphocyte will work together to remove the infection? As we know all the lymphocytes that recognize self peptides are eliminated by immune system but why, after treatment with antibiotic, did the patient develop chronic arthritis?

are working in a hospital and saw a patient who has rashes on his body, conjunctivitis, facial paralysis, and a swollen knee. Since you just learned about lymphocytes and the MHC classes in Dr. Starnges lecture, what MHC class and lymphocyte will work together to remove the infection? As we know all the lymphocytes that recognize self peptides are eliminated by immune system but why, after treatment with antibiotic, did the patient develop chronic arthritis?

Biology 2e

2nd Edition

ISBN:9781947172517

Author:Matthew Douglas, Jung Choi, Mary Ann Clark

Publisher:Matthew Douglas, Jung Choi, Mary Ann Clark

Chapter42: The Immune System

Section: Chapter Questions

Problem 1VCQ: Figure 42.11 Which of the following statements about T cells is false? Helper T cells release...

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Figure 42.11 Which of the following statements about T cells is false? Helper T cells release cytokines while cytotoxic T cells kill the infected cell. Helper T cells are CD4+, while cytotoxic T cells are CD8+. MHC II is a receptor found on most body cells, while MHC I is a receptor found on immune cells only. The T cell receptor is found on both CD4+ and CD8+ T cells.
The Adaptive Immune Response Is a Specific Defense Against Infection Name the class of molecules that includes antibodies, and name the five groups that make up this class.
Match the immunity concepts: __________ inflammation __________ antibody secretion __________ phagocyte __________ immunological memory __________ vaccination __________ allergy a. neutrophil b. plasma cell c. nonspecific response d. purposely causing memory cell production e. basis of secondary immune response f. nonprotective immune response
Match the immunity concept with the best description. ___anaphylactic shock a. recognizes antigen ___immune memory b. inadequate immune response ___autoimmunity c general defense mechanism ___inflammation d. immune response against ones own body ___immune deficiency e. secondary response ___antigen receptor f. acute allergic reaction ___antigen processing g. presenting antigen together with MHC markers
Write T if the statement is correct; write F if the statement is not correct. Antigen fragments that bind to MHC class I molecules are typically in endosomes. " " TAP1 and TAP2 are present on the plasma membrane of APCs. " " Proteasomes process antigens within the endoplasmic reticulum. " " Newly synthesized MHC class I molecules can be found within endosomes. " " Newly synthesized MHC class I α chains assemble in the ER with calnexin. " "
Write T if the statement is correct; write F if the statement is not correct. Interferons enhance antigen presentation. " " Peptides that bind to MHC class II molecules are longer than those that bind MHC class I molecules. " " MHC molecules that lack a bound peptide is unstable. " " MHC class I:peptide:TCRcomplexes and MHC class II:peptide:TCR complex shows very similar orientation. " " The Golgi apparatus is part of the endomembrane system. " "
Which of the following statements is NOT correct? Group of answer choices -Natural killer cells are cytolytic lymphocytes that mediate ADCC -Neutrophils carry out phagocytosis of C3b-tagged particles -Macrophages carry out phagocytosis of C3b-tagged particles -Mast cells produce granules containing the cytotoxin perforin -B lymphocytes express a receptor for complement proteins
Johnny has just been infected and needs your help in letting him know how his body is fighting the infection. To do so, describe how the innate and adaptive immune systems work together. You should address the following: 1. define adaptive and innate immunity; 2. Describe the role of natural killer cells (how do they work); 3. what are antigen presenting cells and what is their function, what are MHCs?; 4. describe the role of the complement system; 5. what is the role of interferons?; 6. How do helper T cells, cytotoxic T cells and B lymphocytes work make sure you address adaptive immunity memory?; 7. Define HIV, which cells do they attack and why do some individuals develop persistent lymphadenopathy (swollen or enlarged lymph nodes)?
Which of the following statements are NOT TRUE about Antigen Presenting Cells (APCs)? (Select all that apply) An APC can become activated from antigen binding as well as MHC binding APCs can carry mutliple MHCs Antigen presenting is due to APC activation Adaptive, innate, and non-immune cells can be APCs APCs travel to the sites of resident macrophages to recruit effector immune cells An APC that binds via their expressed MHC II will be killed
What are MHC class I and class II receptors and how do they recognize foreignness? This is an immunology question
Which of the following are true of interferons? Select all that apply. O They are a critical part of the innate immune system in fighting bacterial infections O They are a part of the second line of defense against viruses O They degrade viral DNA O They are signaling molecules produced by infected cells to help uninfected cells defend themselves agains viruses O They are part of innate immunity O They are part of adaptive immunity and are "trained" by the immune system to eliminate specific pathogens
All of the following are true of antigen-presenting cells (APCs) EXCEPT: which option below is the answer? None of the other four answers (All are true statements about APCs) They can interact directly with lymphocytes They include macrophages and dendritic cells APCs by themselves cannot distinguish between different microbial antigens, remember them later, or respond specifically to them They are non-specific cells and they play no role in activating or triggering specific immune responses