Intro Flashcards
(26 cards)
3 Domains of Life
1) Bacteria
2) Archea
3) Eukaryote
4 Phases of Bacterial Growth
1) Lag
2) Log Growth
3) Stationary
4) Death
Reproduce by ______
Binary fission
Shape Classification
- Coccus
- Rod
- Spirillum
O2 Utilization
- Need O2
Obligate Aerobe
O2 Utilization
- O2 Toxic
Obligate Anaerobe
O2 Utilization
- Use O2 (not need)
Facultative Anaerobe
O2 Utilization
- Not use O2 (not toxic)
Aerotolerant Anaerobe
O2 Utilization
- Low O2
Microaerophile
Gram Positive = colour during gram stain?
Purple
Gram Negative = colour during gram stain?
Pink
Commensalism
one benefits, no effect to other
Mutualism
both benefits
Parasitism
one benefits at expense of other
Bacterial Cell Wall
- made of?
- prevents ___?
- peptidoglycan
- prevents osmosis
Lipopolysaccharide
- 3 components
- Gram ___?
- Target for ___?
- O antigen
- Core
- Lipid A
- Gram Negative
- Innate Immune System
Nucleoid
- Not _____
- _____, _____, chromosome
- ____ genomes
- Not nucleus
- single, circular, chromosome
- haploid genomes
Plasmids
- required for bacterial growth?
- encode for _____
- transmits between?
- NOT
- fitness factors
- bacteria –> bacteria
4 Pathogen Success
1) Colonization
2) Invasion/Toxicity
3) Immune Evasion
4) Transmission
Virulence Factors
- Surface (5)
- LPS (endotoxin)
- Flagella
- Pili
- Capsules
- Secretion System
Flagella
- purpose?
- how?
- motility
- through chemotaxis
(CCW = run)
(CW = tumble)
Pili
- attach to?
- surfaces
- host tissues
- other bacteria
Capsules
- made of ____?
- attach to ____?
- protect from ____?
- polysaccharides
- host tissues
- host immune systems
Biofilm Stages (4)
1) Attach
2) Microcolony
3) Biofilm Development
4) Maturation
