Test 3 Questions

Question 1

Which cell engulfs a microbe, digests its proteins, and presents peptide antigens in combination with MHC II molecules?

Answer 1

Dendritic cells, B cells and macrophages

Question 2

Pyrogens, e.g., LPS, IL-1, and TNF-α, affect the hypothalamus and trigger the __________ response to slow down microbial replication.

Answer 2

fever

Question 3

Because your epidermis is tough and durable, it allows you to __________ to remove contaminating microbes. It is a simple and effective method to reduce the transmission of infection

Answer 3

wash hands

Question 4

The redness associated with inflammation is caused by:

Answer 4

vasodilation

Question 5

Coating bacteria with __________ enhances phagocytosis. Capsule, however, interferes with the ability of this host protein to bind to the complement receptor on macrophages. Therefore, encapsulated bacteria are difficult for phagocytes to eliminate.

Answer 5

C3b