Term
|
Definition
| organsim inflicting harm on another with no benefit to itself |
|
|
Term
|
Definition
| non-mutual, one benefits at cost of the other |
|
|
Term
|
Definition
| interaction with no effect on each other |
|
|
Term
|
Definition
| one organism benefits, other neither benefits nor is harmed |
|
|
Term
|
Definition
| all derive a mutual benefit |
|
|
Term
|
Definition
| a community of microorganisms that inhabit a particular environment |
|
|
Term
|
Definition
many roles in health and disease
produces benefiicial metabolites
mouth, skin gut
as you move down the GI, pH increases
stomach has low pH to prevent growth
large intestine is neutral w loads of growth
balance between feremcutes and bacterioids is essential |
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
largest number of bacteria and species
synthesizes essential aa and vitamins
produces enzymes
ferments saccharides
provides defence against pathogens
protects against allergies, autoimmune and asthma |
|
|
Term
|
Definition
barrier against pathogens
tooth decay caused by strep
bacteria growing on teeth form biofilm called plaque |
|
|
Term
|
Definition
barrier against pathogens
hygiene paradox
some viruses/bacteria can get through sweat glands/pores
distribution of species determined by environment/lifestyle |
|
|
Term
|
Definition
production of vit b and k
production of enzymes - break down of polysaccharides for easier cell uptake
carb fermentation + fatty acid production to help absorb magnesium, calcium and phosphorus |
|
|
Term
|
Definition
some species linked to disease development
dysbiosis - disturbance of balance - linked to disease, oppurtunistic pathogens grow when normal flora is destroyed |
|
|
Term
|
Definition
isolation of faecal sample
wash with PBS
vortex to remove slimy layers
DNA extraction
PCR with rRNA primers
gel electrophoresis
band purification
sequencing
compare with variety of sequences on database to match to organism |
|
|
Term
|
Definition
gram pos don't have outer cell membrane
gram pos have thick peptidoglycan layer
gram pos hold in gram stain |
|
|
