Question: immunology multiple choice questions which of the following statements concerning...

Immunology Multiple Choice Questions

1. Which of the following statements concerning complement is FALSE?
   1. A complement is a group of circulating blood proteins
   2. Complement can form a membrane attack complex, which forms pores in microbe membranes
   3. Some activated complement proteins activate other complement proteins
   4. Complement binding sites are antigen-specific
   5. Complement can stimulate cells to secrete inflammation-mediating chemicals
2. Which of the following statements concerning interferon is FALSE?
   1. Interferon inhibits viral replication in cells
   2. Interferon inhibits tumor cell growth
   3. Interferon kills bacteria by forming pores in the cell membrane
   4. interferon is a family of proteins expressed by most cell types in response to infection by a virus
   5. Interferon binds to surface receptors on cells and signal cellular production of antiviral proteins
3. Which of the following statements concerning antibody is FALSE?
   1. antibody is a secreted toll-like receptor that recognizes only a specific PAMP (Pathogen Associated molecular pattern)
   2. antibody can be secreted when it enters and circulate in the blood
   3. some antibody can be used to opsonize target cells
   4. antibody secreted by plasma cells
   5. some antibody can neutralize toxins
4. Why does it take many days for the Adaptive immune response to reach full ability to clear a pathogen or toxin?
   1. Because the response requires many rounds of cell division of the activated lymphocyte
   2. because pathogens initially suppress the Adaptive immune response
   3. because a pathogen has to grow to huge population sizes before adaptive immunity is activated
   4. because adaptive immune cells move through the body by diffusion and it takes many days to spread from the lymph organ to the site of colonization
   5. because the innate immune system suppresses the adaptive immune activation until it properly prepares the body