Homework Answers
Q.9. Histamine is immediately released from the preformed granules during the activation phase of Type I hypersensitivity response, hence it is called as a preformed mediator, while the other mediators like cytokines, chemokines, and leukotrienes are released and activated later on in a cascade of reactions. Thus option C is a correct response.
Q.10. Cytotoxic T cells normally express the CD8 in the thymus by the involvement of CD8 α & CD8 β chains while some negative natural killer cells also express the CD8. Means both express CD8. Hence option D is correct.
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QUESTION 9 Preformed mediators that are released during the activation phase...
which one is right answer QUESTION 25 The preformed mediators that are released from mast cells...
which one is right answer
QUESTION 25 The preformed mediators that are released from mast cells during a type I hypersensitivity response include which of the following? O a. cycloxygenase O b. Histamine O c. Leukotrienes d. Prostaglandins
Answer both of them with explaination please A B-cell may be activated by: Another B-cell O...
Answer both of them with explaination please
A B-cell may be activated by: Another B-cell O A cytotoxic T-cell A TFH cell A natural killer T-cell Question 7 3 Which costimulatory receptor on T cells promotes T cell activation following the binding of the T cell receptor to the MHC/peptide complex? CD8 B7 CD28 CD3 CD4
Question 9 1 pts Natural killer cells target cells that lack MHC-Ion their surface. True O...
Question 9 1 pts Natural killer cells target cells that lack MHC-Ion their surface. True O False 1 pts Question 10 the difference between innate Question 12 1 pts Match the term with the method of complement activation classical pathway [Choose] alternate pathway [Choose] lectin pathway ✓ [Choose) BPD binding to a Sathogen antibody binding to an antigen T cytotoxic cells binding to MHC- lectin binding to RBD lectin binding to mannose 1 pts 13
1 pts T cytotoxic cell activation involves: O antigen binding to antibody on B cells O...
1 pts T cytotoxic cell activation involves: O antigen binding to antibody on B cells O T cell receptor (TCR) binding to antigen displayed in MHC-II O T cell receptor (TCR) binding to antigen displayed in MHC- natural killer cells 1 pts Question 13 Question 11 1 pts Which of the following is found on the surface of T cells! O All of these O MHC-II O CD and TCR TCR O CD 1 pts Question 12 Question 10 1...
please answer all 4 questions Question 11 3 pts A B-cell may be activated by: O...
please answer all 4 questions
Question 11 3 pts A B-cell may be activated by: O A TEH cell O Another B-cell O A cytotoxic T-cell O A natural killer T-cell Question 12 3 pts What happens to centrocytes that have high-affinity (tightly-binding) antigen receptors after somatic hypermutation? They receive survival signals from TFH cells o They cannot process antigen or present it to TFH cells o They undergo phagocytosis by dendritic cells in the "light zone" o They die...
Question 1 12 pts Mitchechterm with the best Probiotic Prebiotic Cheese) Graft of tissue from one...
Question 1 12 pts Mitchechterm with the best Probiotic Prebiotic Cheese) Graft of tissue from one location to another in the same individual's body Molecules released by cytotoxic T cells and natural killer cells to induce programmed cell death (apoptosis) and so destroy target cells such as cancer cells or Graft of tissue from a donor of the same species as the recipient but not genetically identical Proteins released by Killer cells to destroy targeted cells by inserting pores in...
please answer all 4 questions :) Question 7 3 pts Which of the following occur in...
please answer all 4 questions :)
Question 7 3 pts Which of the following occur in both B cells and T cells? o isotype switching O somatic recombination o alternative splicing to produce different isoforms of the receptor o alternative splicing to produce a secreted form of the receptor o somatic hypermutation Question 8 3 pts Multiple factors that increase antigen receptor diversity also increase formation of non- productive alleles. Which of the following would generate a non-productive allele? Select...
multiple choice question: microbiology A) What contents are released by NK cells into infected cells to...
multiple choice question: microbiology A) What contents are released by NK cells into infected cells to start the process of apoptosis? Antibodies. Granzymes. Viruses. T cell receptors. B) The T cell receptor of CD4 T cell recognizes: Free peptides. MHC I / peptide complex. MHC II / peptide complex. Both a and c. C) Th1 is a subset of CD4 T cell that are good for clearing: Viral infection. Extracellular bacterial infection. Intracellular bacterial infection. All of the above. D)...
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...
which one is right answer
QUESTION 25 The preformed mediators that are released from mast cells during a type I hypersensitivity response include which of the following? O a. cycloxygenase O b. Histamine O c. Leukotrienes d. Prostaglandins
Answer both of them with explaination please
A B-cell may be activated by: Another B-cell O A cytotoxic T-cell A TFH cell A natural killer T-cell Question 7 3 Which costimulatory receptor on T cells promotes T cell activation following the binding of the T cell receptor to the MHC/peptide complex? CD8 B7 CD28 CD3 CD4
Question 9 1 pts Natural killer cells target cells that lack MHC-Ion their surface. True O False 1 pts Question 10 the difference between innate Question 12 1 pts Match the term with the method of complement activation classical pathway [Choose] alternate pathway [Choose] lectin pathway ✓ [Choose) BPD binding to a Sathogen antibody binding to an antigen T cytotoxic cells binding to MHC- lectin binding to RBD lectin binding to mannose 1 pts 13
1 pts T cytotoxic cell activation involves: O antigen binding to antibody on B cells O T cell receptor (TCR) binding to antigen displayed in MHC-II O T cell receptor (TCR) binding to antigen displayed in MHC- natural killer cells 1 pts Question 13 Question 11 1 pts Which of the following is found on the surface of T cells! O All of these O MHC-II O CD and TCR TCR O CD 1 pts Question 12 Question 10 1...
please answer all 4 questions
Question 11 3 pts A B-cell may be activated by: O A TEH cell O Another B-cell O A cytotoxic T-cell O A natural killer T-cell Question 12 3 pts What happens to centrocytes that have high-affinity (tightly-binding) antigen receptors after somatic hypermutation? They receive survival signals from TFH cells o They cannot process antigen or present it to TFH cells o They undergo phagocytosis by dendritic cells in the "light zone" o They die...
Question 1 12 pts Mitchechterm with the best Probiotic Prebiotic Cheese) Graft of tissue from one location to another in the same individual's body Molecules released by cytotoxic T cells and natural killer cells to induce programmed cell death (apoptosis) and so destroy target cells such as cancer cells or Graft of tissue from a donor of the same species as the recipient but not genetically identical Proteins released by Killer cells to destroy targeted cells by inserting pores in...
please answer all 4 questions :)
Question 7 3 pts Which of the following occur in both B cells and T cells? o isotype switching O somatic recombination o alternative splicing to produce different isoforms of the receptor o alternative splicing to produce a secreted form of the receptor o somatic hypermutation Question 8 3 pts Multiple factors that increase antigen receptor diversity also increase formation of non- productive alleles. Which of the following would generate a non-productive allele? Select...
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...
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