II. Please provide complete correct detailed solution. Preferentially done by ha
ID: 50533 • Letter: I
Question
II. Please provide complete correct detailed solution. Preferentially done by hand or on paper. Short Answer: 1. (2 pts) Four events, a-d, are listed below. Correctly list the six events in chronological order. (a) Antibodies secreted by plasma cells tag antigen for destruction by either macrophages or complement. (b) B-cells sensitized with antigen are activated to divide into plasma cells and memory cells by Helper that was alerted by an APC. -cell (d) APC macrophage migrates to lymph node, locates and binds with Helper T-cell ('alerted") with cognate receptor. (e) Freely-circulating antigen flowing through ly mph node binds to a single B-cell with cognate receptor ensitized J: meanwhile, macrophage encounters pathogen, ingests, digests & displays with MHC II. 2. (2 ptsy) Four events,a-d,are listed below. Correctylisthe four events in chronological order. (a) NK cells encounter viral-infected cells& induce apoptosis. (b) Interferon type I has autocrine & paracrine effects; infected cell inhibits protein synthesis; neighboring cells inhibit viral reproduction. (c) Virus enters host cell & replicates using host cell enzymes & substrates (amino acids, nucleotides). (d) Host cell recognizes unusual elements of viral genome and expresses and secretes interferon. 3. (5 pts) Choose the letter, IF ANY, on the diagram that locates the processes listed below. If none, write NONE site of single effect. site of action of oxytocin site of filtration site of maximal reabsorption site where tubule is permeable to H20 but not NaCl. points this page (9) total (19)--Explanation / Answer
1. e - b - d - a
2. c - d - b - a
3.
Site of single effect - E
Site of action of oxytocin - C
site of filtration - B
site of maximal reabsorption - F
site where tubule is permeable to H2O but not NaCl - F