MICROBIOLOGY LAB FINAL COMPLETE QUESTIONS
AND CORRECT ANSWERS | GRADED AND THE
LATEST SERIES
All UTA microbiology labs are considered what biosafety level?
Ans: BSL-2
Question: What are four things that all BSL-2 labs must include?
Ans: 1. PPE
2. Sinks and eye wash stations
3. Restricted access
4. autoclaves (or alternative decontamination methods)
Question: What is the plural for media?
Ans: medium
Question: media can come in a wide variety of formulations and can exist in
what three states?
Ans: solid, semi-solid, and liquid
Question: Catalase is found in both
Ans: prokaryotes and eukaryotes
Question: What is often considered as a virulence factor for many pathogens?
, 2025-2026 SERIES
Ans: coagulase
Question: What large amino acid polymer is found in the vertebrate connective
tissues?
Ans: gelatin
Question: What large amino acid polymer is found in mammalian milk?
Ans: Casein
Question: A phenol red test has a pH indicator that is what color?
Ans: red
Question: In gelatin hydrolysis tests media contains what besides gelatin?
Ans: peptone and beef extract nutrients
Question: Urea is a nitrogen containing organic molecule and principal end
product of
Ans: protein catabolism
Question: Durham tube in phenol red test is used to
Ans: capture gas produced by the microbe
, 2025-2026 SERIES
Question: Amylase enzymes are able to cleave starch molecules by breaking
what?
Ans: glycosidic bonds between glucose monomers
Question: What is the term for water molecules breaking complex molecules
into simpler forms?
Ans: hydrolysis
Question: E. coli and S. faecalis are considered good sewage indicators
because they are not normally
Ans: present in water or soil
Question: Are coliforms gram-negative or gram-positive coccus?
Ans: gram-negative
Question: Microorganisms capable of producing citrate permease will be able
to utilize citrate as their
Ans: sole carbon source
Question: What is the enzyme that some microorganisms produce that help it
grow on Simmons citrate medium?
Ans: citrate permease