Microbiology Lab Practical – Final Exam 2025 Questions & Answers with 100% Correct Answers | Verified

Staph epidermidis - This is MSA and the side labelled "2" is red. Which Staph does this indicate? Staph aureus - This is MSA and the side labelled "1" has turned yellow. Which Staph does this indicate? Lactose Negative - This is an EMB plate. What does the test result of "1" indicate? Lactose Positive - This is an EMB plate. What does the test result of "2" indicate? E. Coli - This is an EMB plate. What is indicated by "3?" Starch was broken down - This is a starch plate. What does the clear boundary around this colony indicate? acid was produced - Why did this Fermentation Tube turn yellow? gas was produced - What is indicated by the bubble in this Durham Tube inside a Fermentation Tube? Protein was not broken down - This is a Gelatin Tube Test. In Test Tube 2, it is solid. What does this mean? Catalase Test - What is the name of this test? Antibiotic Disk Diffusion (Antibiotic Susceptibility) - What is the name of this test? Mannitol Salt Agar - What is the name of this media?