Growth and Cultures Flashcards
Name for the group of proteins that synthesize new DNA
Replisome
Z-Ring proteins
FtsZ
Name for formation of a cross wall?
Septation
Proteins that guide peptidoglycan synthesis to make cells a certain shape?
Penicillin Binding Proteins (PBPs)
3 types of reactive oxygen species
Superoxide radicals, Hydrogen peroxide and Hydroxyl radical
3 types of ROS adaptations
Peroxidase, Superoxide dismutase, Catalase
What breaks down Super oxide radicals (O2-)
Superoxide dismutase
Superoxide dismutase breaks down ______
Super oxide radicals (O2-)
What neutralizes Hydrogen Peroxide
Catalase and Peroxidase
Catalase and Peroxidase both break down ______
Hydrogen Peroxide
What breaks down Hydroxyl Radicals?
Nothing
Oxygen adaptations in Obligate Aerobes
Peroxidase, Superoxide dismutase and Catalase
Oxygen adaptations in Facultative Anaerobes
Peroxidase, Superoxide dismutase and Catalase
Oxygen adaptations in Aerotolerant anaerobes
Superoxide Dismutase
Oxygen adaptations in Strict anaerobes
None
Oxygen adaptations in Microaerophiles
Superoxide Dismutase and Catalase sometimes
Syntropy
One organism utilizing the waste of another
System that localizes the Z ring
MinCDE
Radiation adaptations
Pigments, DNA and protein repair
Differential vs Selective media
Differential indicates what category the bacteria is in, Selective only allows a certain type of bacteria to grow
5 phases of growth in culture media
lag, log, stationary, death and long term stationary
Blood agar is both
Enriched and Differential
Eosin Methylene Blue agar is both
Selective and differential
MacConkey agar is both
Selective and differential
MacConkey agar selects for
G-
Mannitol Salt agar is both
selective and differential
Chemostat cultures at optimal or sub-optimal?
Sub-Optimal
Turbidostat Cultures at optimal or sub-optimal
Optimal
3 Ways of classifying culture media
Composition, physical nature or function
Blood agar distinguishes between what 2 types of bacteria
Hemolytic vs non-hemolytic