Imm250 exam - Study guides, Class notes & Summaries

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IMM250 EXAM WITH COMPLETE SOLUTIONS (ALREADY GRADED A+)
  • IMM250 EXAM WITH COMPLETE SOLUTIONS (ALREADY GRADED A+)

  • Exam (elaborations) • 16 pages • 2024
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  • IMM250 EXAM WITH COMPLETE SOLUTIONS (ALREADY GRADED A+) What happens when pathogen breaches barrier - 5 - Answer- 1 - Release of pamps 2 - Detected by PRR 3 - Activates signal transduction 4 - Activates NFkB 5 - Controls production of soluble mediators Acute inflammatory response - 4 - Answer- 1 - Rest 2 - Bacteria comes in -> cytokines 3 - Vasodilation to increase vascular permeability 4 - Infected tissue becomes inflamed - redness, heat, swelling, pain Pro-inflammatory cytok...
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IMM250 EXAM NEWEST 2024 ACTUAL EXAM TEST BANK COMPLETE QUESTIONS AND DETAILED ANSWERS (VERIFIED ANSWERS) ALREADY GRADED A+
  • IMM250 EXAM NEWEST 2024 ACTUAL EXAM TEST BANK COMPLETE QUESTIONS AND DETAILED ANSWERS (VERIFIED ANSWERS) ALREADY GRADED A+

  • Exam (elaborations) • 19 pages • 2024
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  • IMM250 EXAM NEWEST 2024 ACTUAL EXAM TEST BANK COMPLETE QUESTIONS AND DETAILED ANSWERS (VERIFIED ANSWERS) ALREADY GRADED A+ What is immunodeficiency? - Answer- A disease where there is absent or deficient immune responses. It can affect innate immunity or adaptive immunity and increase the risk of cancer. What is primary immunodeficiency? - Answer- An immunodeficiency that is inherited by genetics What is secondary immunodeficiency? - Answer- An immunodeficiency that is due to external/e...
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IMM250 EXAM QUESTIONS AND CORRECT ANSWERS (ALREADY GRADED A+)
  • IMM250 EXAM QUESTIONS AND CORRECT ANSWERS (ALREADY GRADED A+)

  • Exam (elaborations) • 9 pages • 2024
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  • IMM250 EXAM QUESTIONS AND CORRECT ANSWERS (ALREADY GRADED A+) Which of the following changes is seen at infected sites as a consequence of an acute inflammatory response: - Answer- 1. Recruitment of neutrophils 2. Increased expression of cell adhesion molecules on endothelial cells 3. Edema 4. Increased vascular permeability CRP (C-reactive protein) - Answer- 1. An indicator of infection 2. A PRR 3. An opsonin 4. A protein that can activate complement 5. produced in response to IL-6 ...
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 IMM250 MIDTERM EXAM QUESTIONS AND REVISED ANSWERS NEW UPDATE
  • IMM250 MIDTERM EXAM QUESTIONS AND REVISED ANSWERS NEW UPDATE

  • Exam (elaborations) • 44 pages • 2024
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  • IMM250 MIDTERM EXAM QUESTIONS AND REVISED ANSWERS NEW UPDATE Which of the following is not a property of adaptive immunity A. Tolerance to self-antigens B. Memory C. High specificity D. Improved secondary responses E. Fast response (within 24 hours) - Answer E. Fast response (within 24 hours) The first antibody isotype expressed by a newly produced B cell in the bone marrow is A. IgA B. lgD C. lgE D. lgG E. lgM - Answer E. lgM IgE are mostly fo...
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IMM250 PRACTICE EXAM QUESTIONS WITH ALL CORRECT ANSWERS
  • IMM250 PRACTICE EXAM QUESTIONS WITH ALL CORRECT ANSWERS

  • Exam (elaborations) • 15 pages • 2024
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  • IMM250 PRACTICE EXAM QUESTIONS WITH ALL CORRECT ANSWERS Mechanisms through which neutrophils can kill microbes - Answer- - Antimicrobial peptides - Lysozyme - ROS (reactive oxygen species) - respiratory burst Reactive oxygen species - Answer- ROS are powerful oxidizing factors that kill pathogens - One way that phagocytes kill bacteria is by formation of NADPH oxidase from the combination of subunits(p67, p47, p40 and p22, gp91) which, with O2 forms ROS. Chronic Granulomatous Dise...
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IMM250 STUDY EXAM QUESTIONS WITH ALL CORRECT ANSWERS
  • IMM250 STUDY EXAM QUESTIONS WITH ALL CORRECT ANSWERS

  • Exam (elaborations) • 10 pages • 2024
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  • IMM250 STUDY EXAM QUESTIONS WITH ALL CORRECT ANSWERS What are cytoplasmic PRRs? - Answer- They recognize MAMPs that are inside the cell, includes Nod-like receptors (NLR) and Rig-I-like receptors (RLR) Why do mucosal epithelial cells have low TLR expression? - Answer- For tolerance of epithelium to normal microbiota? What PRRs are prsent in epithelial cells? - Answer- Only the cytoplasmic NLRs and RLRs are present. What do NLRP receptors recognize? - Answer- DAMPs such as K+ and ROS. ...
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IMM250 Midterm Exam Questions with 100% Correct Answers
  • IMM250 Midterm Exam Questions with 100% Correct Answers

  • Exam (elaborations) • 6 pages • 2024
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  • IMM250 Midterm Exam Questions with 100% Correct Answers What is the difference between prebiotics and probiotics? - Answer- Probiotics are live bacterial cultures that have beneficial effects on health (unproven) Prebioticsare food for probiotics - non digestible carbs that provide energy source for bacteria What are the harmful effects of gut bacteria? - Answer- Too much- ie appendix bursting causes peritonitis which can be very severe. In the wrong area - ie UTI Microbiota and Obesit...
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IMM250 ACTUAL EXAM QUESTIONS AND ANSWERS ALL CORRECT
  • IMM250 ACTUAL EXAM QUESTIONS AND ANSWERS ALL CORRECT

  • Exam (elaborations) • 7 pages • 2024
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  • IMM250 ACTUAL EXAM QUESTIONS AND ANSWERS ALL CORRECT How can antibodies defend a host against a virus? - Answer- -Antibodies can neutralize the virus by binding to it before it enters a host cell - Antibodies can bind to virus protein antigens on the infected cell surface leading to complement-mediated or NK-mediated lysis of the cell. In neonatal immunity: - Answer- Protective antibodies are obtained from the mother during pregnancy and breast feeding. A monoclonal antibody preparation...
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