MICROBIOLOGY LAB FINAL - UTA QUESTIONS AND
CORRECT DETAILED ANSWERS (VERIFIED ANSWERS)
ALREADY GRADED A+
What biosafety level is considered 'High Risk'? Ans✓✓✓BSL-4
T/F: Media can be considered complex or undefined. Ans✓✓✓True
The autoclave has three main phases: Ans✓✓✓Purge, Sterilization,
Exhaust
T/F: Bacteria can be in three relationships: pathogenic, communalistic,
mutualistic Ans✓✓✓True
Active ingredients can either kill microbes ______ or inhibit growth
_________. Ans✓✓✓Microbiocidal, Microbiostatic
T/F: (Control CFU-Treatment CFU)/Control CFU *100% Ans✓✓✓True
T/F: When a single bacterial cell is placed onto agar media, it will start
to undergo binary fission. Ans✓✓✓True
Which one of the following is not an example of form (morphology) of a
bacterial colony? Ans✓✓✓Flat
, T/F: CFU stands for colony forming unit Ans✓✓✓True
What is the formal for total magnification? Ans✓✓✓Objective * Ocular
T/F: Stains are basic if negatively charged and acidic if positive.
Ans✓✓✓False
T/F: This is a gram positive Ans✓✓✓False
Capsule stain uses what stain? Ans✓✓✓India Ink, Crystal Violet
T/F: Metabolically active cells are also referred to as vegetative cells.
Ans✓✓✓TRUE
Microorganisms that are ____ rely heavily on the environment for 'ready
made molecules' Ans✓✓✓Fastidious
T/F: Undefined media contains ingredients that are normally derived
from extracts of plants, fungi or animal tissue. Ans✓✓✓True
___ is intended for selection and differentiation of Staphylococcus.
Ans✓✓✓Mannitol Salt Agar (MSA)
CORRECT DETAILED ANSWERS (VERIFIED ANSWERS)
ALREADY GRADED A+
What biosafety level is considered 'High Risk'? Ans✓✓✓BSL-4
T/F: Media can be considered complex or undefined. Ans✓✓✓True
The autoclave has three main phases: Ans✓✓✓Purge, Sterilization,
Exhaust
T/F: Bacteria can be in three relationships: pathogenic, communalistic,
mutualistic Ans✓✓✓True
Active ingredients can either kill microbes ______ or inhibit growth
_________. Ans✓✓✓Microbiocidal, Microbiostatic
T/F: (Control CFU-Treatment CFU)/Control CFU *100% Ans✓✓✓True
T/F: When a single bacterial cell is placed onto agar media, it will start
to undergo binary fission. Ans✓✓✓True
Which one of the following is not an example of form (morphology) of a
bacterial colony? Ans✓✓✓Flat
, T/F: CFU stands for colony forming unit Ans✓✓✓True
What is the formal for total magnification? Ans✓✓✓Objective * Ocular
T/F: Stains are basic if negatively charged and acidic if positive.
Ans✓✓✓False
T/F: This is a gram positive Ans✓✓✓False
Capsule stain uses what stain? Ans✓✓✓India Ink, Crystal Violet
T/F: Metabolically active cells are also referred to as vegetative cells.
Ans✓✓✓TRUE
Microorganisms that are ____ rely heavily on the environment for 'ready
made molecules' Ans✓✓✓Fastidious
T/F: Undefined media contains ingredients that are normally derived
from extracts of plants, fungi or animal tissue. Ans✓✓✓True
___ is intended for selection and differentiation of Staphylococcus.
Ans✓✓✓Mannitol Salt Agar (MSA)
