VERIFY 1

VERIFY 1. A person is out fishing and cuts their finger with a fillet knife. Although the wound is small, the laceration provides an entry point for bacteria (Vibrio vulnificus), which invade the tissue.

Describe the steps that would be employed by a neutrophil to eliminate a bacterial cell. Assume that no antibodies are present that recognize the bacteria as foreign. VERIFY 2. Vibrio vulnificus is particularly pathogenic because this strain of bacteria hides its surface molecules behind a polysaccharide coat, which prevents interactions with pattern recognition receptors (PRRs) on phagocytic cells.

Describe how antibodies could be employed to eliminate this bacteria in the absence of complement proteins.