Exam 14: B-Lymphocyte-Activation

For each of the descriptions in questions ,select the B cell signaling molecule (A-I)that most closely matches it. -An Src family kinase that phosphorylates ITAMs in the cytoplasmic tails of B cell receptor complex proteins

For each of descriptions in questions ,select the letter of the Ig isotype (A-E)that most closely matches it.Answers may be used more than once. -Unclear functional role

For each of the descriptions in questions ,select the B cell signaling molecule (A-I)that most closely matches it. -A protein that is the cell surface receptor for Epstein-Barr virus

A child is infected with a virus,mounts antibody responses to a viral protein,and recovers.One year later,the child is exposed to the same type of virus,and mounts a memory response specific to the same viral protein.Which one of the following statements comparing the (primary)antibody response to the viral protein and the memory response a year later is true?

For each of the descriptions in questions ,select the B cell signaling molecule (A-I)that most closely matches it. -A protein tyrosine kinase homologous to Zap-70,which phosphorylates several adaptor proteins and enzymes

For each of descriptions in questions ,select the letter of the Ig isotype (A-E)that most closely matches it.Answers may be used more than once. -An allergic reaction

For each of descriptions in questions ,select the letter of the Ig isotype (A-E)that most closely matches it.Answers may be used more than once. -Phagocytosis

For each of descriptions in questions ,select the letter of the Ig isotype (A-E)that most closely matches it.Answers may be used more than once. -T cell-independent antigens

For each of the descriptions in questions ,select the B cell signaling molecule (A-I)that most closely matches it. -A protein that covalently binds to microbes and serves as a ligand for a coreceptor that enhances B cell responses to antigen

For each of descriptions in questions ,select the letter of the Ig isotype (A-E)that most closely matches it.Answers may be used more than once. -Binds to receptors in the gastrointestinal tract of infants for absorption into the serum

Which one of the following statements about humoral immune responses is true?