Homework Answers
Answer
Type I hypersensitivity :-
- Antigen binds to basophil and Mast cell and stimulate them to secrete vasoactive substances.
- Anaphylactic shock is an example of this type of hypersensitivity
Type II hypersensitivity :
- Transfusion of mismatched blood can cause this type of hypersensitivity
- IgM or IgG binds to an antigen, which leads to Lysis or opsonization of target cell
Type III hypersensitivity :
- Acute glomerulonephritis is an example of this type of hypersensitivity
- Insoluble complex of antigen- bound IgG or IgM precipitate out in tissue.
Type IV hypersensitivity :
- T cell elicit a response 12-72 hours after initial response.
- Graft rejection is an example of this type of hypersensitivity
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Match each description or example with the correct type of hypersensitivity. Type I (acute) hypersensitivity Type...
Please match the description to the type of hypersensitivity. 1. acute reaction to an allergen mediated...
Please match the description to the type of hypersensitivity. 1. acute reaction to an allergen mediated by IgE, mast cells, basophils, and histamine (Click to select) 2. a reaction mediated by T cells and the effector cells enlisted by them. Generally, this reaction takes a day or two to develop after exposure to the provoking antigen (Click to select) 3. mediated by IgG antibody-antigen complexes, which are deposited in basement membranes of some organs and invoke an inflammatory response (Click...
Please select the characteristics or components of Type 2 hypersensitivity reactions. Check All That Apply Complement...
Please select the characteristics or components of Type 2 hypersensitivity reactions. Check All That Apply Complement is involved in lysis of cells. IgG and/or IgM is involved. Type 2 reactions may occur if mismatched blood given as a transfusion. Type 2 reactions involve basophils, mast cells, and histamine. Cytotoxic T cells play an important role in cytolysis in Type 2 reactions,
A Type Il cytotoxic hypersesitivity B. Type III immune complex hypersensitivity C. Type I anaphylactic hypersensitivity...
A Type Il cytotoxic hypersesitivity B. Type III immune complex hypersensitivity C. Type I anaphylactic hypersensitivity D. Type IV cellular hypersensitivity Select one of the types of hypersensitivity listed to correctly complete each of the statements below. is typified by the transfusion reaction may be related to the development of rheumatic fever is preceded by IgE attachment to mast cells develops in poison ivy is a cell damaging or cell destroying reaction is typified by the Arthus phenomenon does not...
QUESTION 5 Which of the following is CORRECT? Only IgG and IgM can result in complement...
QUESTION 5 Which of the following is CORRECT? Only IgG and IgM can result in complement fixation or activation. The initial response to an antigen produces more antibodies than the second or subsequent exposures. The initial response to an antigen is more rapid than the second or subsequent exposures. Only IgG can cross the placenta. IgM and IgE are both pentamers. They can bind 10 antigens. The antibodies all have different variable regions by same constant regions QUESTION 6 Select...
A 48-year-old male patient arrives at the hospital after being rescued from a car accident in...
A 48-year-old male patient arrives at the hospital after being rescued from a car accident in which he suffered a serious hemorrhage. He needs a blood transfusion to stabilize. Blood typing test discovers he is A+, Which of the following blood types can he receive? Check all that apply. Check All That Apply A+ and A- B+ and B- AB+ and AB- O+ and O- Please match the description to the type of hypersensitivity. 1. acute reaction to an allergen...
No explanation needed. 1. T cells with high affinity for self antigens are eliminated during T...
No explanation needed. 1. T cells with high affinity for self antigens are eliminated during T cell selection because A. These cells have limited lifespan B. These cells do not recycle C. These cells can bind to self antigen on body cells leading to body cell destruction D. These cells have no memory 2. HIGM results from a mutation in _______. A. CD40 B. CD40L C. CD28 D. CD80/86 3. CSR results in chromosomal rearrangement of IgM to produce A....
Match each type of immune system cell to its function or description. (Use each description once)....
Match each type of immune system cell to its function or description. (Use each description once). Helper T-cell Detects pathogens and releases chemokines as part of the inflammatory response Participates in activation of B-cells if it has receptors for the same antigens Has receptors that are specific to particular antigen structures and releases antibodies as part of the humoral response Releases histamine as part of the inflammatory response Secretes proteins that cause infected cells to undergo apoptosis White blood cell...
immunology practing samples and not sure if my answers correct. 1. NK cells are effective against...
immunology
practing samples and not sure if my answers correct.
1. NK cells are effective against viral infections because many virus infected cells a. are susceptible to lysis b. are susceptible to phagocytosis c. show reduced levels of MHC class I molecules d. show reduced levels of MHC class II molecules e. none of the above 2. Arachidonic acid serves as a substrate in the lipoxygenase and cyclooxygenase pathways resulting in the production of a. histamine, leukotrienes b. leukotrienes, prostaglandins...
12. Antimicrobials may a. produce allergic reactions b. produce toxic effects not only to the microbe...
12. Antimicrobials may a. produce allergic reactions b. produce toxic effects not only to the microbe but to the hoat c. kill bacteria in our bodies all the above 13. All of the following pertain to the role ofactivated helper T cells in cellular mediatesd immunity except a. differentiation into memory Th cells b. recognize MHC with antigenic peptide on macrophages c. activate Te cells indirectly lead to cytolysis through complement e. indirectl y lead to phagocytosis of large microorganisms...
Could I get all the answers please,, thank you,, Question 35 (2 points) Which cell type...
Could I get all the answers please,, thank you,, Question 35 (2 points) Which cell type is capable of producing antibodies? Question 35 options: A) B cells B) T cells C) macrophages D) neutrophils E) both A and B Question 36 (2 points) This antibody is pentameric in structure and is the better at stimulating complement than other antibody classes (can form a staple conformation): Question 36 options: A) IgM B) IgE C) IgD D) IgA E) IgG Question 37...
Please match the description to the type of hypersensitivity. 1. acute reaction to an allergen mediated by IgE, mast cells, basophils, and histamine (Click to select) 2. a reaction mediated by T cells and the effector cells enlisted by them. Generally, this reaction takes a day or two to develop after exposure to the provoking antigen (Click to select) 3. mediated by IgG antibody-antigen complexes, which are deposited in basement membranes of some organs and invoke an inflammatory response (Click...
Please select the characteristics or components of Type 2 hypersensitivity reactions. Check All That Apply Complement is involved in lysis of cells. IgG and/or IgM is involved. Type 2 reactions may occur if mismatched blood given as a transfusion. Type 2 reactions involve basophils, mast cells, and histamine. Cytotoxic T cells play an important role in cytolysis in Type 2 reactions,
A Type Il cytotoxic hypersesitivity B. Type III immune complex hypersensitivity C. Type I anaphylactic hypersensitivity D. Type IV cellular hypersensitivity Select one of the types of hypersensitivity listed to correctly complete each of the statements below. is typified by the transfusion reaction may be related to the development of rheumatic fever is preceded by IgE attachment to mast cells develops in poison ivy is a cell damaging or cell destroying reaction is typified by the Arthus phenomenon does not...
QUESTION 5 Which of the following is CORRECT? Only IgG and IgM can result in complement fixation or activation. The initial response to an antigen produces more antibodies than the second or subsequent exposures. The initial response to an antigen is more rapid than the second or subsequent exposures. Only IgG can cross the placenta. IgM and IgE are both pentamers. They can bind 10 antigens. The antibodies all have different variable regions by same constant regions QUESTION 6 Select...
A 48-year-old male patient arrives at the hospital after being rescued from a car accident in which he suffered a serious hemorrhage. He needs a blood transfusion to stabilize. Blood typing test discovers he is A+, Which of the following blood types can he receive? Check all that apply. Check All That Apply A+ and A- B+ and B- AB+ and AB- O+ and O- Please match the description to the type of hypersensitivity. 1. acute reaction to an allergen...
immunology
practing samples and not sure if my answers correct.
1. NK cells are effective against viral infections because many virus infected cells a. are susceptible to lysis b. are susceptible to phagocytosis c. show reduced levels of MHC class I molecules d. show reduced levels of MHC class II molecules e. none of the above 2. Arachidonic acid serves as a substrate in the lipoxygenase and cyclooxygenase pathways resulting in the production of a. histamine, leukotrienes b. leukotrienes, prostaglandins...
12. Antimicrobials may a. produce allergic reactions b. produce toxic effects not only to the microbe but to the hoat c. kill bacteria in our bodies all the above 13. All of the following pertain to the role ofactivated helper T cells in cellular mediatesd immunity except a. differentiation into memory Th cells b. recognize MHC with antigenic peptide on macrophages c. activate Te cells indirectly lead to cytolysis through complement e. indirectl y lead to phagocytosis of large microorganisms...
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