Question

41, NK eells will Presents MHC-I with viral antigen Expresses normal MHC-I with self antigen b. Presents mutated MHC-I d. A & C None of the above e. 42. Answer (a) for TRUE or b) for FALSE to the following statement: C3a and CSb are anaphylatoxins. 43. Answer (a) for TRUE or (b) for FALSE to the following statement: C3 and CS convertases are generated from all complement pathways. 44. Answer (a) for TRUE or (b) for FALSE to the following statement: While the Clq protein starts the classical pathway, the complement MBL protein starts the Lectin pathway. Pephde Bndng Cle 45. Answer (a) for TRUE or (b) for FALSE to the following statement MHC-I can present to CD8+ T cells and can be loaded with 13 amino acids . Regarding the figure below, choose (a) for tissue rejection or (b) for NO tissue rejection: Recipient haplotype Donor haplotype Host B Host AxB

Answer 1

43 a- b -) True flase Cza and C5a - are anaphylo toxin → @ True anaphylotoxin - anaphylotoxin Also known as - complement peptide are helpful in the activation af complement system. ey cause a smooth muscle contraction, Vasodilation and Histamine release from Mast cell and enhance vascular permeability in the Body during any foreign invasiono ton C3 Ez lenyomatessen dissociation Ga anaphylotoxin factor Cab CS - csa dissociation factor - Cob cu Cut disociation cuar . Cub factors