Question

1. The person known to history as "Typhoid Mary" was identified by public health officials as a source of typhoid fever, although she reported she had never had typhoid fever. Which of the following is the most accurate description of her in this scenario? A) human carrier B) contact carrier C) reservoir D) both a human carrier and a reservoir E) a reservoir but not a carrier

2. Which of the following mucous membranes has cilia to aid shedding? A) urinary system B) lower respiratory system C) mouth D) nasal cavity E) mouth, nasal cavity, and urinary system

3. Which of the following proteins of the complement cascade is an opsonin?  A) factor P B) MAC C) C3a D) C5a E) factor B

4. A person produces a mutated C3 protein resulting in C3a failing to stick, but enzymatic function is not affected. Complement activation in this individual would result in which of the following? A) MACs would form but inflammation would not occur. B) Phagocytosis would be facilitated but chemotaxis by phagocytes would be reduced. C) Phagocytes would be attracted to the site of infection but phagocytosis would be impaired. D) MACs would not form. E) Phagocytes would not be attracted to the site of infection.

Answer 1