Microbiology GCU (Lab Exam) Final Review Questions & Answers 2024/2025

Microbiology GCU (Lab Exam) Final Review Questions & Answers 2024/2025 Selective Medium - ANSWERSA proprietary membrane-based assay developed by Fluka Analytical that tests for bacteria that cause urinary tract infections and differentiates them based on their color reaction on the membrane. Differential Medium - ANSWERSA growth medium that contains a component(s) that allows one to tell the difference between organisms that grow. Is mannitol salt agar selective or differential? - ANSWERSboth selective and differential Is blood agar selective or differential? - ANSWERSdifferential Is MacConkey agar selective or differential? - ANSWERSboth selective and differential Is the Eosin Methylene Blue agar selective or differential? - ANSWERSboth selective and differential Is the catalase test selective or differential? - ANSWERSdifferential Is the oxidase test selective or differential? - ANSWERSdifferential MacConkey Agar selects for which group of bacteria? - ANSWERSGram-negative bacteria MacConkey Agar media differentiates between enteric bacteria based on what biochemical reaction? - ANSWERSThe ability to ferment lactose If the organism is E. coli, what would you see on your plate? - ANSWERSE. coli ferments the lactose in the media, lowering the pH. This would turn the colonies and surrounding media pink.