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SS ln the altemati ve pathway, C3 and CS convertase are stabilized by which of t

ID: 151071 • Letter: S

Question

SS ln the altemati ve pathway, C3 and CS convertase are stabilized by which of the following? A) propendin B) factor B c) factor I D) C4 56. Which of the following cytokines is also known as the T-cell growth factor? A) IL-2 B) IL-4 C) TGF-beta D) IFN-gamma 57. Heterophile antigens are characterized as: A) found in unrelated plants or animals but cross-reacting with the same antibody B) one's own self-antigens C) any antigens used for immunization D) all of the above S8. Cytokines exhibit pleiotropy, which refers to: A) B) C) D) multiple cytokines affecting the same cell one cytokine inhibiting the activity of another cytokine one cytokine affecting multiple cells cytokines acting together to affect a cell 59. Erythropoietin is classified as which of the following? A) T-cell regulator B) colony-stimulating factor C) proinflammatory cytokine D) regulator of the acute phase response 60. Which factor must be associated with factor H to inactivate complement components? A) CIINH B) factorI C) DAF D) CRI

Explanation / Answer

55. Properdin

56. IL2

57. All of the above

58. One cytokine affects multiple cells

59. Colony stimulating factor

60. Factor I