Do the same for 6. I answered E and the correct answer was B

.. . seattleu.instructure.com C 6. A patient has a respiratory viral infection. An infected cell is phagocytosed by a dendritic cell, which then displays a viral antigen on its surface. Which plasma membrane protein is holding the antigen? a. MHC-1 b. MHC-2 c. CD4 d. CD8 e. TLR 7. Which best describes the benefits of type 1 interferon? a. It increases the rate of antigen presentation b. It triggers inflammation c. It allows a virally-infected cell to clear the infection d. It triggers apoptosis of a virally-infected cell e. It causes healthy cells to prepare for and prevent viral infection 8. Some strains of Streptococcus pyogenes are able to dissolve connective tissue in order to invade tissues. The virulence factor involved in this is: a. A/B toxin b. Superantigen c. Collagenase d. M protein e. Adhesin 9. Fimbriae of pathogens like Neisseria gonorrhea and enteropathogenic E. coli usually help with which step of infection? a. Adhesion b. Invasion of deeper tissues Destruction of connective tissue d. Escape from immune cells e. Prevention of lysosome fusion during phagocytosis 10. You discover a bacterium that produces a toxin inhibiting the cleavage of the complement protein C5. Which of the following is a usual effect of complement that would NOT be able to occur due to this toxin? a. Opsonization of the pathogen b. Increased inflammation c. Formation of a membrane attack complex d. Antibody binding to the pathogen Natural Lille omnition of the nothome