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B cells are activated by a. soluble, intact antigens; antigen fragments displayed on the surfaces of other cells b. soluble, intact antigens; soluble, intact antigens c. antigen fragments displayed on the surfaces of other cells; soluble, intact antigens d. antigen fragments displayed on the surfaces of other cells; antigen fragments displayed on the surfaces of other cells e. insoluble, intact antigens; antigen fragments displayed on the surfaces of other cells 23. and T cells are activated by

B cells are activated by a. soluble, intact antigens; antigen fragments displayed on the surfaces of other cells b. soluble, intact antigens; soluble, intact antigens c. antigen fragments displayed on the surfaces of other cells; soluble, intact antigens d. antigen fragments displayed on the surfaces of other cells; antigen fragments displayed on the surfaces of other cells e. insoluble, intact antigens; antigen fragments displayed on the surfaces of other cells 23. and T cells are activated by

Human Anatomy & Physiology (11th Edition)
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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23. and T cells are activated by B cells are activated by a. soluble, intact antigens; antigen fragments displayed on the surfaces of other cells b. soluble, intact antigens; soluble, intact antigens c. antigen fragments displayed on the surfaces of other cells; soluble, intact antigens d. antigen fragments displayed on the surfaces of other cells; antigen fragments displayed on the surfaces of other cells e. insoluble, intact antigens; antigen fragments displayed on the surfaces of other cells 24. What feature or features might all peptides that can bind to a protein encoded by a particular MHC allele have in common? a. They have the same arrangement of nucleotides. b. All peptides that can bind to the protein encoded by a particular MHC allele may have a specific amino acid at a certain position that allows it to fit into the MHC groove. c. All peptides that can bind to the protein encoded by a particular MHC allele may have a specific nucleic acid at a certain position that allows it to fit into the MHC groove. d. All peptides that can bind to the protein encoded by a particular MHC allele may have a specific amino acid at a certain position that allows it to fit over the MHC bulge. e. a and c 25. Which of the following is characteristic of MHC II proteins? a. Most cells express them on their surface. b. They are expressed primarily by professional APCS. c. They are primarily responsible for displaying antigens that originate within the cell cytoplasm. d. They are primarily responsible for displaying exogenous antigen fragments taken into the cell by phagocytosis. e. b and d
Transcribed Image Text:23. and T cells are activated by B cells are activated by a. soluble, intact antigens; antigen fragments displayed on the surfaces of other cells b. soluble, intact antigens; soluble, intact antigens c. antigen fragments displayed on the surfaces of other cells; soluble, intact antigens d. antigen fragments displayed on the surfaces of other cells; antigen fragments displayed on the surfaces of other cells e. insoluble, intact antigens; antigen fragments displayed on the surfaces of other cells 24. What feature or features might all peptides that can bind to a protein encoded by a particular MHC allele have in common? a. They have the same arrangement of nucleotides. b. All peptides that can bind to the protein encoded by a particular MHC allele may have a specific amino acid at a certain position that allows it to fit into the MHC groove. c. All peptides that can bind to the protein encoded by a particular MHC allele may have a specific nucleic acid at a certain position that allows it to fit into the MHC groove. d. All peptides that can bind to the protein encoded by a particular MHC allele may have a specific amino acid at a certain position that allows it to fit over the MHC bulge. e. a and c 25. Which of the following is characteristic of MHC II proteins? a. Most cells express them on their surface. b. They are expressed primarily by professional APCS. c. They are primarily responsible for displaying antigens that originate within the cell cytoplasm. d. They are primarily responsible for displaying exogenous antigen fragments taken into the cell by phagocytosis. e. b and d
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