Question

station 1 what type of hemolysis is shown on this plate? 1 2 what are selective agents in cna media?

Explanation:

1. The blood agar plate shows partial hemolysis (greenish-brown discoloration around colonies), which is alpha hemolysis.
2. CNA (Colistin-Nalidixic Acid) media uses colistin and nalidixic acid as selective agents to inhibit Gram-negative bacteria, allowing Gram-positive growth.

Answer:

1. Alpha hemolysis
2. Colistin and nalidixic acid