Studied by 1 person
Looks like no one added any tags here yet for you.
What kingdom do bacteria belong to?
Monera
Show a labelled diagram of a bacterium
Show cell membrane, cell wall, capsule, cytoplasm, chromosome, plasmid, flagella, ribosomes
What does pathogenic mean?
Disease causing
What does chemosynthetic mean
Makes it own food using energy from chemicals
Give an example of a chemosynthetic bacteria important in agriculture
Rhizobium
How is it (Rhibozium) beneficial?
Turns atmospheric nitrogen which plants can't use into nitrates and imonium compounds which plants can absorb and use
Name the different types of bacteria and give an example of a disease caused by each
Spherical - streptococcus
Name the different types of bacteria and give an example of a disease caused by each
Rod - anthrax
Name the different types of bacteria and give an example of a disease caused by each
Spiral - cholera
Are bacteria eukaryotic? Explain
No, they don't have membrane bound organelles or nucleus
What is the difference between infectious and contagious?
Infection does not require contact, contagious does require direct contact
Draw and explain a bacterial growth curve
Show lag, log, stationary, decline and survival or death, and explain each
What happens during the lag stage
Adjusting to new conditions, no reproduction
What happens during the log stage?
Exponential growth, plenty of resources and no competition
What happens during the stationary stage?
Competition, build up in toxic waste materials, death = reproduction
What happens during the decline stage?
Toxins build up, death > reproduction
What is the survival or die stage?
Bacteria must survive via endospores or die out
What is antibiotic resistance?
Not killed by an antibiotic
Give two examples of antibiotic resistance
Improper prescription, not finishing course
What is a bioreactor?
A vessel in which product is made by microorganisms or their products
Describe batch (continuous) process
Ingredients, goes through all phases, removed, purified, clean apartatus (continuous = ingredients added all the time, kept at log or stationary phase, purified, cleaned)
What is sterile nutrient agar?
Sterile - no microorganisms
What is sterile nutrient agar?
Nutrients - contains food
What is sterile nutrient agar?
Agar - jelly
How can you distinguish between bacterium and fungi on an agar plate?
Fungus - hairy/furry
How can you distinguish between bacterium and fungi on an agar plate?
Bacteria - shiny (slimy)
What is aseptic?
Has no disease causing organisms
Note
Flashcard