Allergies occur when the immune system reacts to what should be harmless, common substances in the environment.

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Chapter 27, Problem 11MC

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Allergies occur when the immune system reacts to what should be harmless, common substances in the environment.

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Which statement best summarizes the two types of cells that B cells differentiate to form? a.) B cells can become plasma cells, which formm antibodies, or memory cells, which help mount an immune response quickly if a pathogen infects the host again. b.) B cells can become plasma cells, which coordinate cell-mediated immunity, or memory cells, which are responsible for endocrine signaling. c.) B cells can become memory cellsm which coordinate cell-mediated immunity, or plasma cells, which are responsible for endocrine signaling/ d.) B cells can become memory cells, which form antibodies, or plasma cells, which help mount an immune response quickly if a pathogen infects the host again.

What is the predicted outcome if a patient receives an allogeneic hematopoietic cell transplant from a family member, and then receives a kidney transplant several months later from the same donor? a. Acute kidney rejection because the patient’s hematopoietic system has been fully reconstituted with patient-derived alloreactive T cells and NK cells. b. Graft-versus-host disease mediated by alloreactive T cells in the transplanted kidney. c. Secondary immune response by patient-derived memory T lymphocytes that were initially activated by the hematopoietic cell transplant. d. The patient is tolerant to alloantigens on the kidney graft and does not require long-term immunosuppressive drugs.

Which of the following is NOT a mechanism used by the immune system to fight multicellular parasites? Select one: a. Antibodies coating the pathogen surface bind to FcRs on mast cells, causing release of granule contents onto surface, and damage the parasite. b. Crosslinking of antibody binding to FceRI on eosinophils cells triggers release of granules, causing smooth muscle contractions. Muscle contractions in the mucosal tracts causes sneezing, coughing, vomiting or diarrhea, dislodging the parasite. d. The parasite is killed and broken down extracellularly, and then phagocytosed by macrophages. C.

Answer 2

Question

Chapter 27, Problem 11MC

Summary Introduction

Introduction:

Allergies occur when the immune system reacts to what should be harmless, common substances in the environment.

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Answer 3

Question

Chapter 27, Problem 11MC

Summary Introduction

Introduction:

Allergies occur when the immune system reacts to what should be harmless, common substances in the environment.

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Answer 4

Question

Chapter 27, Problem 11MC

Summary Introduction

Introduction:

Allergies occur when the immune system reacts to what should be harmless, common substances in the environment.

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Answer 5

Chapter 27, Problem 11MC

Summary Introduction

Introduction:

Allergies occur when the immune system reacts to what should be harmless, common substances in the environment.

Answer 6

Chapter 27, Problem 11MC

Summary Introduction

Introduction:

Allergies occur when the immune system reacts to what should be harmless, common substances in the environment.

Answer 7

Chapter 27, Problem 11MC

Summary Introduction

Introduction:

Allergies occur when the immune system reacts to what should be harmless, common substances in the environment.

Answer 8

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Answer 9

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Answer 11

Ch. 27 - Prob. 1SA Ch. 27 - Prob. 2SA Ch. 27 - Prob. 3SA Ch. 27 - Prob. 4SA Ch. 27 - Prob. 5SA Ch. 27 - Prob. 6SA Ch. 27 - Prob. 7SA Ch. 27 - Prob. 8SA Ch. 27 - Prob. 9SA Ch. 27 - Prob. 10SA

Allergies occur when the immune system reacts to what should be harmless, common substances in the environment.

Solution Summary: The author explains that mast cells burst when they encounter the pollen during the initial exposure, releasing histamine and other chemicals.

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Introduction:

Allergies occur when the immune system reacts to what should be harmless, common substances in the environment.

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Chapter 27 Solutions

Allergies occur when the immune system reacts to what should be harmless, common substances in the environment.

Solution Summary: The author explains that mast cells burst when they encounter the pollen during the initial exposure, releasing histamine and other chemicals.

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Introduction: Allergies occur when the immune system reacts to what should be harmless, common substances in the environment.

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Chapter 27 Solutions

Introduction:

Allergies occur when the immune system reacts to what should be harmless, common substances in the environment.