Bacteria Morphology Flashcards
What are the 6 types of bacterial morphology
- Coccus
- Bacillus
- Coccobacillus
- Vibrio
- Spirillum
- Spirochete
What is the coccus shape and examples of it?
a circle
2 examples:
- strep throat
- gonorrhea
What is the bacillus shape and examples of it?
Long horizontal oval
3 examples:
- E.coli
- Salmonella
- Listeria
—> they cause anthrax, typhoid, tetanus, plague, food poisoning
What is the coccobacillus shape
Rounded rectangle
What is the vibrio shape
teardrop shaped, curved
What is the spirillum shape and examples of it?
waves and it causes syphilis
What is the spirochete shape
Kink waves
What are the common cell arrangements for cocci?
4 types:
diplococcus: two cocci
tetrad: four groups of cocci in a square
streptococcus: chain of cocci
straphylococcus: cluster of cocci
What are the common cell arrangements for bacillus?
one type
streptobacillus: chain of rods
How big is the biggest bacteria?
1000 nm or 1 u
how big is chlamyida
500 nm
how big is the biggest virus and what are other examples?
pox virus 300 nm
Herpes virus: 125 nm
Influenza virus: 100 nm
Picornavirus (polio): 30 nm
E.coli: 4.6 million base pairs
Pandora virus: 0.2 uM
True or false? all viruses are smaller than all bacteria
false
True or false? Parasitic organisms tend to be smaller than their free-living counterparts
true
Poxvirus is one of the largest viruses to infect humans. it is a little smaller than chlamydia bacteria. it is about:
300 nm
