Microbiology Lab Final Exam Questions and Answers 100% Pass

Microbiology Lab Final Exam Questions and Answers 100% Pass All UTA microbiology labs are considered what biosafety level? - BSL-2 What are four things that all BSL-2 labs must include? - 1. PPE 2. Sinks and eye wash stations 3. Restricted access 4. autoclaves (or alternative decontamination methods) What is the plural for media? - medium media can come in a wide variety of formulations and can exist in what three states? - solid, semi-solid, and liquid Catalase is found in both - prokaryotes and eukaryotes 2 100% Pass Guarantee Katelyn Whitman, All Rights What is often considered as a virulence factor for many pathogens? - coagulase What large amino acid polymer is found in the vertebrate connective tissues? - gelatin What large amino acid polymer is found in mammalian milk? - Casein A phenol red test has a pH indicator that is what color? - red In gelatin hydrolysis tests media contains what besides gelatin? - peptone and beef extract nutrients Urea is a nitrogen containing organic molecule and principal end product of - protein catabolism Durham tube in phenol red test is used to - capture gas produced by the microbe Amylase enzymes are able to cleave starch molecules by breaking what? - glycosidic bonds between glucose monomers 3 100% Pass Guarantee Katelyn Whitman, All Rights What is the term for water molecules breaking complex molecules into simpler forms? - hydrolysis E. coli and S. faecalis are considered good sewage indicators because they are not normally - present in water or soil Are coliforms gram-negative or gram-positive coccus? - gram-negative Microorganisms capable of producing citrate permease will be able to utilize citrate as their - sole carbon source What is the enzyme that some microorganisms produce that help it grow on Simmons citrate medium? - citrate permease How do you know if a microorganism is is gelatinase positive? - Liquify gelatin Kovac's reagent reacts with what to produce a red color in SIM test? - indole What percentage of evaporated milk is added to tryptic soy agar for the casein hydrolysis test? - 3% 4 100% Pass Guarantee Katelyn Whitman, All Rights What type of media is Mitis salivarious agar? - both selective and differential Bile Esculin agar media is selective because what compound inhibits growth of gram negative bacilli and most gram positives? - sodium azide If a microorganism is coagulase positive, clotting of plasma cells can be observed - within one minute The MR-VP test is performed to determin